Despite the failures of the previous season, manager Jim Fallon retained his position and unfortunately that decision was to prove disastrous as the league campaign started off in the same poor manner as the previous one. By the end of October, Dumbarton had one win to show for 13 league matches, and had sunk to second bottom place, resulting in Fallon's resignation. Within a week Ian Wallace, one of the club's brightest stars of the 1970s, had been installed and things began to take a turn for the better. Three wins on the trot in November saw Wallace named as Second Division manager of the month, but it wasn't to last. Results began again to go downhill, but even with three games left it was within Dumbarton's own hands whether a second successive relegation would occur. A last minute defeat to Stranraer and an uninspiring loss to Queen of the South meant that they had to better any result that Stranraer could achieve on the last day. As it was, a win over Brechin City was not enough, and it would be Third Division football next season and the fourth tier of Scottish football for the first time in the club's history.
In the national cup competitions, the drought on wins extended for a fifth season. In the Scottish Cup Cowdenbeath defeated Dumbarton in the second round.
In the League Cup, Premier Division Dundee beat Dumbarton, also in the second round.
Finally, in the Challenge Cup, it was a seventh first round defeat in seven attempts – this time to Montrose.
Locally, in the Stirlingshire Cup the misery was compounded with a defeat to Falkirk.
The League match against Brechin City on 31 August marked Jim Marsland's 200th appearance for Dumbarton in all national competitions - the 25th Dumbarton player to break the 'double century'.
The League match against Ayr United on 5 October marked Ian MacFarlane's 200th appearance for Dumbarton in all national competitions - the 26th Dumbarton player to break the 'double century'.
The League match against Livingston on 19 April marked Colin McKinnon's 100th appearance for Dumbarton in all national competitions - the 110th Dumbarton player to reach this milestone.
Dumbarton became only the second team in Scottish League history to be relegated in successive seasons.
For the second successive season Dumbarton matched the record fewest league home wins during a season - just two!