Gary Sparrow is an underachieving TV repairman, unhappily married to the loud and often mocking Yvonne Sparrow. However, Gary's life is changed forever upon discovering a time portal taking him back to a war-torn London, leading to an East End pub (the Royal Oak) and an attractive barmaid named Phoebe, who becomes his girlfriend. From then on, Gary leads a double life, going back and forth across time to please the two women in his life closest to his heart, but furthest apart.