Danger Mouse and Penfold are back but are fired for destroying London. Baron Greenback, seemingly reformed as Baron Silas von Greenback, creates an army of robots to protect the world's leaders. However, Danger Mouse suspects Greenback is up to no good.

NOTE: This episode was released on Nick.com and digital platforms on 1 April 2016.

Penfold's sick of getting injured on missions, so Danger Mouse agrees to take him on holiday. But then mutant sea monsters start to menace the world and Danger Mouse must decide between his mission and his friend. Title reference: "Danger at Sea Level"

NOTE: This episode was released on Nick.com and digital platforms on 15 April 2016.

Danger Mouse tries to prove to Professor Squawkencluck that he can be trusted, but accidentally allows a strange and inexplicably Welsh alien plant, named Evans, to grow all over the Earth. Worse, Penfold can't stop making jam! Title reference: Goldfinger

NOTE: This episode was released on Nick.com and digital platforms on 15 April 2016.

An artificially intelligent robotic toilet, through Penfold's own fault, reinvents itself as "Dr Loo-cifer" and leads a revolt of the world's toilets.

Title reference: Planet of the Apes

Danger Mouse must embrace his feminine side to stop the pink-obsessed supervillain, the Princess, from turning the whole world girly.

Title reference: Red Dawn

Professor Squawkencluck's new security system goes berserk and must be stopped – if only DM and the Professor could stop arguing for long enough.

A giant spider is rampaging across the world and Danger Mouse must stop it... or at least he would, if not for his Arachnophobia.

Title reference: The World Wide Web

Greenback's plague of red traffic lights brings all the world's traffic to a standstill – and then he puts a red light in orbit, and the world itself gets brought to a standstill and everything floats into space - except for the Baron due to shoes that stick to the floor!

Title reference: The Day the Earth Stood Still

An alien huckster, named Quark, makes Danger Mouse the most popular tourist attraction in the universe.

Danger Mouse must work with America's best secret agent, Jeopardy Mouse, to foil Greenback's scheme to rearrange the countries, but DM's showboating does not endear him to Jeopardy's no-nonsense attitude.

When an old enemy, Birch Badboy, comes to take over the world via rudeness, Colonel K must return to his secret agent job, as Danger K, to stop him from turning everyone rude.

Professor Squawkencluck makes a growing/shrinking invention to save the world from a meteor attack. When Penfold is accidentally turned huge, trying to stretch his trousers after they got shrunk in the hot wash, DM figures out it could actually be helpful to save the world.

Guest star: Richard Osman as Professor Strontium Jellyfishowitz

The secret service agents have suspicions that someone is trying to take a new chemical from them, and all fingers of suspicion are pointing towards Colonel K.

Danger Mouse's biggest fan, named Ian, known as the Danger Fan, comes to visit, on the same day as his yearly inspection. Unfortunately, Danger Mouse fails to capture his enemies.

Guest star: Richard Ayoade as The Snowman

Quark traps Danger Mouse, Penfold and Jeopardy Mouse in his new game where old foes return.

Title reference: Olympic Games

The Snowman is fed up of Christmas and being made fun of for being considered harmless, so he steals Santa Claus' powerful hat, when he has had enough of being made fun of. Danger Mouse and Penfold must get it back in order to save Christmas.
Title reference: The Iceman Cometh

Guest stars: Richard Ayoade as The Snowman and Brian Blessed as Santa Claus

Danger Mouse and Penfold must prevent Isambard King Kong Brunel from travelling back in time and un-inventing the world.

After all the other Danger Agents, and Penfold, become super-intelligent, as a result of eating brainpower-enhancing celery, Danger Mouse considers looking for a new job. However, there is a little hitch in the celery, as Nero, on Greenback's orders, snuck into HQ and his DNA polluted the gene pool.

Title reference: Never Say Never Again

An evil version of Danger Mouse escapes from a parallel dimension, called the Twystyverse, and teams up with Greenback to defeat his good counterpart.

Danger Mouse and Penfold become reluctant surrogate parents to Baron Greenback, who seems to have accidentally erased his own memory when his latest evil scheme goes wrong.

Title reference: There's no place like home

While on a mission in Transylvania, Danger Mouse and Penfold meet a show-obsessed vampire duck named Count Duckula, who is determined to take over the world, one terrible TV show at a time. He also turns the watchers (including Penfold) into vegetables!

Title reference: From Dusk to Dawn

Danger Mouse's plans for Professor Squawkencluck's surprise birthday party get a hiatus when Baron von Greenback unleashes killer birthday presents upon the world to avenge his own birthday and to claim the earth as his ultimate present.

Title reference: Happy birthday!

When Professor Squawkencluck's mother comes to visit HQ, a giant mutant rubbish monster is not too far behind.

Title reference: Frankenstein's Monster

Professor Squawkencluck attempts to reactivate her "Big Head" security system, but it goes into lockdown once again and imprisons everyone in a maximum-security dungeon.

A failed attempt to boost Penfold's self-confidence leads to a super-powerful game monster escaping into the real world.

Title reference: Mega Man

To prevent them from ruining his evil plans again, the deranged time-travelling chimp, Brunel, travels back in time to prevent Danger Mouse and Penfold from ever meeting.

When Danger Mouse and Penfold are sent on a rescue mission to a mysterious island, Danger Mouse's over-competitiveness borders on criminal.
Title reference: The Good, the Bad and the Ugly

Trivia: The original airing of this episode featured a theme tune performed by various fans of the series.

Danger Mouse's uncontrollable laughter annoys a race of clown aliens, named the Bozorians, so much that they invade Earth!

Title reference: Star Wars: Episode II – Attack of the Clones

Danger Mouse and the Baron are forced to team up to defeat a villain who is obsessed with cheese, Monsieur Aubrey le Camambert.

Title reference: Armageddon

Whilst trying to prove that magic doesn't exist, Danger Mouse accidentally unleashes an evil magical queen into the world!
Title reference: Queen of Hearts

Guest star: Miranda Richardson as Queen of Weevils

Danger Mouse must battle a criminal organisation called Hydrant after finding out he has lost Agent Of The Month to Jeopardy Mouse.
Title reference: Hail Hydra

Guest star: Lindsey Russell as Hysteria

Penfold's addiction to social media helps the Baron turn all of DM's secrets against him in order for him to use Big Ben as a diamond-tipped drill to ball through the Earth for the tonnes of gold, in the Earth's core.

The Princess is back and erases all weekdays so she can play at the weekend forever! Danger Mouse must ruin everyone's lives by fixing the problem.

Title reference: Tomorrow Never Comes

When Danger Mouse is responsible for Professor Squawkencluck losing her job, his clumsy attempts to get her back help the Baron split the Earth in two.

Title reference: The Earth is Enough

The dynamic duo take on a shoddy army of knock-offs when Quark's latest money-making scheme is to create cheap copies of Danger Mouse and Penfold.

Title reference: "Send in the Clowns"

DM and Penfold travel to the Twystyverse in a bid to stop Penfold's evil counterpart, Baron Silas von Penfold, from taking over both versions of the Earth.

Title reference: Masters of the Universe

When the Baron speeds up the rotation of the Earth using windmills, DM and Penfold age 300 years and must take on their nemesis as very old individuals.

Title reference: "Evil is Forever"

When Penfold saves a celebrity from certain doom he becomes a media sensation. DM smells a rat, or at least some evil villainous hamster from another dimension.

Title reference: Very Important Person

The plucky rodent springs into action when cute kittens start infiltrating positions of authority in London.

The crimebusting rodent goes undercover as the fifth member of Quark's mega-popular boy band discovering his inner performer while Penfold discovers a musical plot to destroy the world.

DM takes on Quark again, but this time in his strangest setting yet: Penfold's dreams!

Title reference: A Nightmare on Elm Street 3: Dream Warriors

Danger Mouse's confidence takes a hit when the Baron accidentally steals it and invigorates his shy daughter, Delilah von Greenback, to create a criminal mastermind! But unfortunately, his plans backfire when she wants to become an evil mastermind herself! Can "The Scrapbook of Momentous Mouse Moments" help DM find it within himself to fight back, or will Delilah make her own planet of planets, called "Delilahiana".

Title reference: The Confidence Man

Greenback unleashes a new strain of elephant flu upon the world! Will Penfold's immunity to the virus save the day, or will his fear of elephants doom the world?

Title reference: The Spy Who Came in From the Cold

The Queen of Weevils returns and convinces DM he's a medieval knight in order to escape from a secure prison - can Penfold break the spell and prevent London becoming a medieval city?
Plot reference: Star Wars: Episode IV – A New Hope

Guest star: Miranda Richardson as Queen of Weevils

Danger Mouse faces the prospect of being written out of his own show, after Count Duckula kidnaps the writers and forces them to make him the star.

Guest star: Ben Ward as Monkey Writer

It's Crimicon - the Annual Criminal World Convention - and DM and Penfold are joined by a brand new secret agent, named Agent 58, to stop Brunel from selling a potentially catastrophic custard bomb doomsday weapon. But, unfortunately for them, he's sold it to Baron Greenback!

Title reference: Agent 47 or Agent 51

Stiletto plots to destroy the world with robot termites, if he doesn't get the Best Minion Award at the Sidekickie Awards, and DM gets overly enthusiastic for Penfold to win the Best Sidekick Award.

Title reference: Thanks a million!

DM and Penfold go back to school to thwart the plans of an evil food scientist, named Professor Ham Hands and his killer hot dogs. Also, Danger Mouse needs to pass his final science test or his spy license will be revoked.
Title reference: High School Musical

Guest star: Ben Willbond as Professor Ham Hands

Danger Mouse encounters his toughest challenge of the series as the maniacal trillionaire known as Crumhorn, releases every enemy DM has ever battled. Once all the villains are defeated, except for the Princess (who is Crumhorn's daughter), he and Penfold go after her and DM fights Crumhorn. While fighting Crumhorn, he gets zapped by guns and lazers. Has the world's greatest secret agent survived this epic battle with Crumhorn and been buried under the rubble, or is this the end of Danger Mouse as we know it?
Part 1 of 2 Title reference: Skyfall

Guest star: John Oliver as Crumhorn and Richard Ayoade as The Snowman

Penfold and Crumhorn find out that Danger Mouse is still alive, but is lost in a jungle. Penfold sets out to rescue him while Crumhorn is set on destroying him. When they arrive, they find out that DM has amnesia and can't remember anything so he can't stop Crumhorn leaving the rest of the agency to stop him. Can Penfold, Professor Squawkencluck and Colonel K stop Crumhorn, will DM get his memory back or will Crumhorn take over the world?
Part 2 of 2

Guest star: John Oliver as Crumhorn

The Princess becomes a teenager, known as Dark Dawn, and she forgets about Mr. Snuggles, who turns all the teddies in the world, including Penfold's teddy bear, Bernard, evil that can help him attack the world, due to Dawn's changes as a teenager.

Penfold and Baron von Greenback are forced to ally when they get stranded on an island.

Title reference: The Admirable Crichton

When Colonel K goes on holiday, Danger Mouse steps in. However, he can't handle the paperwork, do the missions himself or control the agents. Worse, Colonel K has been kidnapped by Baron von Greenback!

Envious at Danger Mouse's ever-growing medal collection, Penfold falls under the spell of Quark's latest money-making scheme.

Professor Squawkencluck's body swap with King Kong Brunel has dire consequences at the annual science convention.

Danger Mouse leads the Danger Babies astray after he tells them a story that he, Penfold, Professor Squawkencluck and Colonel K are all villains in disguise.

Title reference: Live and Let Die

Danger Mouse and Jeopardy's inability to work together after a mission in space goes wrong forces each of them to strike out on their own, with DM coming face to face with an old adversary.

Title reference: Lost in Space

The Baron's love for The Queen of Great Goldlandia threatens to bring Danger Mouse to his knees when the Baron becomes king and DM becomes his personal bodyguard!

Title reference: The Man Who Would Be King

The cult of cats from "The Cute Shall Inherit the Earth" adopt Danger Mouse as their leader.

Title reference: "I Believe in a Thing Called Love"

Danger Mouse and Penfold get a taste of Thanksgiving when they join Jeopardy Mouse in America. When in America with Jeopardy, they discover that Professor Ham Hands has joined Hydrant.
Title reference: Thanksgiving Dinner

Guest stars: Lindsey Russell as Hysteria and Ben Willbond as Professor Ham Hands

Professor Squawkencluck's seriousizer is nabbed by Pompom, the fun and laughter-hating president of the clown planet of Bozoria.

Title reference: Big Trouble in Little China

The 'ping' of a microwave causes Danger Mouse to blast a hole in the wall of Squawkencluck's laboratory and inadvertently discover (and create) Birch Badboy's origins.

Title reference: Quantum of Solace

During filming for a film adaptation of the events of "Planet of the Toilets", Colonel K and Professor Squawkencluck are zapped and turned into toilets.

Title reference: A View to a Kill

Ian, the Danger Fan, traps Danger Mouse and Jeopardy in an interactive board game and forces Penfold to play for his friends' lives!

Title reference: "Roll of the Dice"

Danger Mouse's addiction to challenges threatens the world when Quark tricks him into transporting a ticking timebomb back to Earth!

Title reference: Goldfinger

When Penfold scores a date with superstar Scarlett Johamster, Danger Mouse and the Professor provide conflicting advice.

Title reference: There's Something About Mary

Penfold must repeat the same day over and over again to stop a time-altering Duckula from framing DM.

Title reference: Groundhog Day

A late night scary movie makes Penfold even extra jittery, forcing Danger Mouse to make his sidekick sit out the latest mission which is to stop the Baron from flooding the world.

Title reference: Die Hard

Derek Mollar a geeky descendant of DM, travels back in time to try to stop Danger Mouse from destroying the world.

Title reference: Day of the Dead

Danger Mouse and Penfold arrive at the UN to scenes of quarrelling diplomats, caused by a sabotaged translation system. They also discover Ian has become a fan of Crumhorn.

Guest star: John Oliver as Crumhorn

Danger Mouse and Squawk discover the Baron's plans to brainwash the world's pets into becoming his personal army of slaves, while Nero ends up in Penfold's care.

Title reference: Lassie Come Home

Crumhorn is back! Danger Mouse has released him by mistake! He, now, uses a ray that controls people and gets Ivana the Invisible, Megahurtz, Rocket Sloth and Baron von Greenback to help him defeat Crumhorn. But is DM starting to turn villainous in the process?
Title reference: Dark Side of the Force

Guest star: John Oliver as Crumhorn

Danger Mouse learns the meaning of fear when he meets a hair-raisingly spooky villain!

Title reference: The Blair Witch Project

Whilst driving, the lights go out and the Danger Car disappears. When the lights come back on, DM and Penfold discover that they're on "The Jimmy Camel Show", which looks back at the pairs actions from the past two series, but Penfold is suspicious. Title reference: You Only Live Twice

NOTE: This is the last episode to air on Nickelodeon until Melted. Episodes after this aired on NickToons.

After she is accidentally regressed to a teen, Danger Mouse must summon Squawk's Twystyverse counterpart to talk some sense into her. Title reference: Twisted Sister

NOTE: This is the first episode to air on Nicktoons until Melted.

Danger Mouse inherits the ancient but spritely MK3 car after the beloved MK4 gets jammed-up (literally). But Penfold is suspicious when the MK3 is determined to have DM all to himself.

Title reference: Grand Theft Auto

Danger Mouse arrives in ancient Greece and befriends Zeus, who grants him godly powers.

Title reference: Clash of the Gods and The Odyssey

Danger Mouse is left gadget-less when an unappreciated Squawk leaves the Danger Agency to work for tech genius Elon Muskrat, unaware he is actually Greenback in disguise!

Title reference: Enemy of the state

Penfold takes a trip inside Danger Mouse's body to save him from a deadly aversion to his own heroism.

Title reference: For Your Eyes Only

The danger agents are at Squawk's super-secret wild-west testing facility, home to a society of Penbots, robots who have a rather familiar face.

Title reference: A Fistful of Dollars

Danger Mouse and Penfold are celebrating another noisy victory, gleefully ringing Big Ben's bell when an over-excited Penfold falls, pushing the clock hand forward and causing the sun to go down prematurely, which a mysterious new villain plots to take advantage of!

Title reference: Daylight Savings Time

Baron Greenback brews a plot to steal every beverage on the planet and mix them all together, turning Earth's drinks into an un-drinkable, disgusting sludge whilst rendering all of DM's allies unable to help him!

Title reference: The law of averages

A mishap on a mission leaves Danger Mouse confused - why is Penfold not talking to him?

Title reference: Licence to Kill

Danger Mouse's over-reliance on gadgets prompts Colonel K to send his top agent on a tech-free nature retreat, but unfortunately for DM, Delilah has also been sent there by Greenback due to her own overuse of her tech.

The Snowman is hired as Danger Mouse's new sidekick, leaving Penfold without a job.
Title reference: No More Mr. Nice Guy

Guest stars: Richard Ayoade as The Snowman and Christopher Eccleston as J. Woolington Sham

There's relief all around when Penfold's pilfering of Squawk's gadgets and clandestine late-night trips to shady warehouses turns out to be in preparation for his taking part in 'bot battles', which is actually a trap set by Megahurtz.

Danger Mouse and Penfold are in a training simulation when one of DM's flying kicks damages the holodeck with catastrophic consequences. They wake to find they have been in a three-year dream, that they aren't secret agents and work in IT instead, and the Danger Agency has been a figment of their imaginations! Whilst Penfold and Squawk quickly settle into a life of menial office work, DM struggles to accept life as Dane G. Mouse. Or is this boring new life not what it appears to be?
Title reference: Total Recall Guest star: Richard Osman as Professor Strontium Jellyfishowitz

NOTE: This is the last episode to air on Nicktoons.

Danger Mouse faces the Queen of Weevils in a fearful Halloween Special.
Title reference: A Night to Remember Guest star: Miranda Richardson as Queen of Weevils

NOTE: This is the first episode to air on Nickelodeon (in production order).

Danger Mouse reluctantly takes a role in Pink Dawn's musical re-enactment of "Melted" for a double-length, all-singing, all-dancing special.

NOTE: This is the first episode to air on Nickelodeon (in air date order).

Danger Mouse, Penfold and Squawk go undercover disguised as a family to find out why the world’s villains are heading to one holiday camp, Sydneyland. When Greenback shows up with Delilah, the team are convinced he is up to no good, but can’t find any evidence of wrongdoing. When Penfold enters Squawk and DM in a dance competition they discover the prize is the fabled Helmet of Power, an ultimate invention bent on destruction.

Title reference: "We Are Family"

When a sudden urge to fly the Mark IV hits, Penfold leads a confused Danger Mouse to a farm, from which he claims to feel an unexplained magnetic pull. An entranced Penfold is met by a shadowy figure - Granny Penfold! Penfold recounts his childhood years on Granny’s farm, where he was trained in the ancient martial art of Farm Fu; a farming-based martial art. Granny needs Penfold’s help to retrieve the sacred Fung Farm Book of Farm Fu, which has fallen into the hands of her enemies, causing farm animals to turn evil and rise up against their owners.

Title reference: Crouching Tiger, Hidden Dragon

The Danger Agency realises that a lack of accounting has left them bankrupt. Whilst the bailiffs are in collecting goods from HQ the team decide to hold a telethon, asking people to phone in and donate to order their favourite clips to be played. Their target is a whopping ten million pounds! Can they reach their target in time? And what clip is DM trying to hide?

Title reference: Telethon

It is staff appreciation day at Danger HQ and Squawk and Danger Mouse have two very different ideas on where to go: Squawk wants to go to Cos Con and DM wants to go to Awesome World. Penfold has the deciding vote so the pair are busy trying to convince Penfold to pick their choice. With Penfold busy inventing tasks so they can earn his favour, no one has noticed that a jam spillage in the professor’s experiment has brought a sticky surprise to life - a super-sized jam monster which might just ruin all of their plans.

An accidental sidekick swap leaves Danger Mouse with Pinfold, Penfold's cousin.

Title reference: As sharp as a pin

Penfold is asked to defend an alien planet from invasion.

Title reference: The Last Starfighter

Danger Mouse, Penfold, Squawk and Colonel K must team up with accidental duplicates of themselves to stop Big Head.

Count Duckula is hosting the Supies awards show and the Danger Agents are all in attendance.

Title reference: The Grammys

When the Danger Agency’s public approval ratings plummet, Colonel K brings in a truly out-of-this-world PR guru to help put things right. Alarmingly for Danger Mouse and Penfold, that guru turns out to be the galaxy’s biggest trickster – Quark! DM is soon won over after seeing Quark demonstrate his Exaggerator Device: an invention that spins even the most mundane event into an outrageously overblown display of awesomeness. With the help of the Exaggerator, DM’s popularity skyrockets to dizzying heights, but fame comes at a price. And when Quark starts making Danger Mouse look villainous, DM will have to convince the world he’s not the criminal everyone thinks he is.

Title reference: Lost in Translation

Stuff is going missing all over the world, but the team are distracted, fascinated by Squawk’s new Futuroid camera, which incredibly spits out snaps of future events. DM is aghast when the camera produces a photo of him and Squawk kissing! When Penfold is abducted by an alien tractor-beam, Squawk and Danger Mouse must overcome their mutual disgust to work together. Their search for Penfold leads them to Flarg, the alien who’s been nabbing the world’s missing items. Chained upside down, and with Flarg intent on stealing everything in existence, the situation looks hopeless.

Title reference: The World Is Not Enough