第三季讲述了一群年轻的 U 型潜艇船员的命运，他们参与了大西洋战役，被一位痴迷的皇家海军指挥官 (雷·史蒂文森饰) 追捕，并被派往南半球执行一项危险的任务。他们在罗伯特·埃伦伯格 (弗朗兹·丁达饰) 的指挥下结成了强大的个人联盟。
In the second series, Adam goes on a date with a girl who smells like Mum, Jonny starts going out with a much older woman, Mum is forced out of the house by a mouse, Dad starts drying fish in the downstairs cupboard, neighbour Jim makes a birthday cake for his dog Wilson, Grandma gets a new boyfriend who no one likes, and we meet Dad's mother - 'Horrible Grandma'.
