When Percy Brand, a habitual confidence trickster, keeps being sent down, he goes to great lengths to ensure that his son Colin, does not find out about his criminal past. But when Colin becomes an assistant to the Judge, who is about to try Percy for his latest escapade, Percy and his gang have to come up with a plan, to stop them meeting in court.

A young couple become engaged, but enjoy a number of comedic aventures before their wedding day.

Men from Scotland Yard and military intelligence build a dossier on a sabotage ring.

When ship's fireman Peter McCabe walks out on his long-suffering wife, he leaves her impoverished, with two young daughters and a boy born soon after his departure. After an absence of fourteen years McCabe returns, sacked and humiliated, trailing trouble in his wake.

When Hitler invades Poland, sports journalist Colin Metcalfe (Hugh Williams) is unexpectedly reassigned as a foreign correspondent in Norway. En route, his ship is attacked by a German U-boat, but his warning to the Royal Navy is dismissed and he loses his post. With the German invasion of Norway soon after, Metcalfe returns, determined to uncover enemy operations and strike back against the occupiers. (Note: The film was released in the United States under the alternate title The Avengers (1942).)

In a quiet summer corner of Wiltshire that is forever England, David and Janet decide to tie the knot. Unfortunately this is the cue for everyone else to take over proceedings, to the dismay of the couple and the increasing despair of Janet's father.

A con man hides out in a boys' school, posing as a professor. When the undisciplined and lazy boys have to pass a few tests, cheating becomes the only option.