When he retires from the Royal Navy as a captain, he purchases a dilapidated late Victorian era amusement pier (the closest thing to a command of his own) with his life savings. The workers are an apathetic bunch, led by an insolent Figg (Victor Maddern), who quits as soon as the new owner begins imposing some semblance of discipline. With the assistance of his new second-in-command, a former RN rating named Tommy (Percy Herbert), and much hard work with help by a group of bored local teenagers, Ambrose soon has the pier repaired.