Comedy drama about the trials and tribulations of three sets of parents as they finally realise that their children have grown up and reluctantly they have to let them enroll at Cambridge University.

The story of a mentally anguished high school history teacher going through a complete reassessment of his life. His method for reassessing his life is to narrate it to his class and interweave in it three generations of his family's history.

The lives of Bodie and Doyle, top agents for Britain's CI5 (Criminal Intelligence 5), and their controller, George Cowley. The mandate of CI5 was to fight terrorism and similar high-profile crimes. Cowley, a hard ex-MI5 operative, hand-picked each of his men. Bodie is a cynical ex-SAS paratrooper and mercenary whose nature ran to controlled violence, while his partner, Doyle, comes to CI5 from the regular police force, and is more of an open minded liberal. Their relationship is often contentious, but they are the top men in their field, and the ones to whom Cowley always assigned to the toughest cases.