A gripping tale of WWII naval warfare in the Baltics, starring John Mills as Lt. Freddie Taylor, a British submarine Captain. The crew of the Sea Tiger are summoned from leave on shore with their families, and sent on a secret mission to intercept the Nazi battleship Brandenburg. In the ensuing battle the British submarine is damaged by a German destroyer. The submarine is leaking fuel so badly that the crew won't be able to make it back to Britain before running out somewhere along the Danish coast. When it seems that their only option may be to blow up the submarine and try to escape to Denmark, seaman James Hobson hatches a plan...

Sir Duncan Craggs retires from the Colonial Service and returns to London with his new French wife. The couple are devoted to each other, but continually flirt with other people. Sir Duncan is appointed to the board of clothing retail chain. On his tour of inspection, he encounters a successful store run by the efficient Mr. Bullock. By contrast, a neighbouring shop is filled with unhelpful staff overseen by an incompetent and lazy manager, Raymond Penny, who is more interested in horseracing than running his shop. Craggs is unimpressed by Penny and summons him to a meeting in London. Both Bullock and his domineering wife travel up to London as well, fearing that Penny will tell Craggs malicious stories about them.

Staff in a jewellery store hatch a plan to catch a thief.