In the trenches of World War I, Oliver (Ollie), Stan, and their fellow soldiers as they prepare for combat. However, Stan is relegated to trench duty while his comrades proceed into battle. Subsequently, the film fast-forwards two decades, revealing Stan's continued vigilance at his post, symbolized by the accumulation of bean cans and the well-worn path of his patrol. His accidental discovery prompts a hero's welcome upon his return home, where he reunites with Ollie, now married to Mrs. Hardy.
Upon visiting Stan at the Soldiers' Home, Ollie discovers him seemingly wheelchair-bound, leading to a series of misunderstandings regarding Stan's physical condition. The duo embarks on a tumultuous journey to Ollie's apartment, encountering various obstacles and engaging in heated exchanges along the way. Domestic chaos ensues upon their arrival, exacerbated by Stan's inadvertent destruction of Ollie's prized possessions and a comical encounter with the neighbor, Mrs. Gilbert. As tensions escalate with the arrival of Mrs. Hardy and Mrs. Gilbert's husband, the narrative culminates in a frenzied pursuit involving a shotgun-wielding Mr. Gilbert and a scramble for safety.
The film was announced as being the last Laurel & Hardy film and it was the last Hal Roach production for Metro-Goldwyn-Mayer.
Block-Heads was the last film directed by John G. Blystone who died shortly afterwards.
The original ending in the script had Billy Gilbert seated comfortably in his study, with Stan and Ollie's heads mounted on his trophy wall (Ollie glances at Stan and says, "Well, here's another nice mess you've gotten me into!"). Hal Roach vetoed the idea as "too gruesome", but writer Felix Adler later used the gag at the end of The Three Stooges' 1941 short I'll Never Heil Again.
McCabe, John with Al Kilgore and Richard W. Bann. Laurel & Hardy. New York: Bonanza Books, 1983, first edition 1975, E.P. Dutton. ISBN978-0-491-01745-9.
