Despite trying to cure himself with a hypnosis tape John Pettigrew is insanely jealous of his wife Jane Margory and convinced she is having an affair with her handsome water aerobics instructor. Seeing a name and number in her diary he follows her in drag, only to find it is a transvestite club she is covering as a journalist and where he is embarrassingly chatted up. In the event his suspicions are correct but the proof comes at a cost.

Suddenly gripped by a memory of being executed in his second incarnation, the Sixth Doctor travels to Seville to save his past self and ensure his own existence in his present.

While operating the controls on his TARDIS console, The Doctor accidentally transports his former companion Tegan Jovanka on board. Less than happy about her situation, she reluctantly agrees to help when the Doctor reveals that two Sontarans are on board with a powerful vitrox bomb with which they intend to blow up the ship.