Gary Sparrow has been trapped in the past with his wartime wife, Phoebe, and their son, Michael, since the war ended. Life's been pleasantly boring, but there's a crisis looming. It's 1962 and The Beatles are about to revolutionise the music scene. Gary has been passing their songs off as his own for the past twenty years, so he's going to be in terrible trouble unless he can persuade Brian Epstein to give up on the Fab Four. If that's not problem enough, at Noël Coward's party, Phoebe boasts that her Gary was a spy during the war. This alerts Noël's friend, James Bond creator Ian Fleming, who really was a spy during the war. Fleming has never heard of Gary Sparrow. Maybe he was spying for the wrong side? Fleming begins to investigate. Then a freak event overturns the laws of physics and catapults Gary back to 2016, a strange new world of selfie sticks, tattoos and vaping. Even more startling, he discovers he has a teenage daughter, Ellie. It seems Yvonne was pregnant when Gary got trapped in the past. Ellie has no idea he's her dad. He'd really like to get to know her, but Yvonne's having none of it. All things considered, might he be better off staying in the 21st century?