Gary Sparrow is an ordinary bloke in 1990s Britain, married to the ambitious Yvonne and working as a TV repairman. Then his whole world changes when he stumbles upon a portal to WWII-era London and begins a dual life as an accidental time traveler.

Former soldiers in Britain's elite Parachute Regiment struggle to come to terms with civilian life after leaving the army.

When new teacher Steve Drake joins the faculty at a school for special-needs students, his unorthodox instruction methods raise eyebrows. But attitudes begin to change when he makes a connection with a particularly unruly student.