Charthurst Green, Kent, 1966. Pauline Cox accompanies Mike Robins to a village cricket match in which he is playing, but becomes bored and wanders away. She fetches up at the local railway station, where she is first entertained to tea by the garrulous, hunchbacked station master, then upset by the intrusion of the latter's assistant Ewen, who proceeds to kill a rabbit in her presence. Making her way back to the match, Pauline is waylaid by the simple-minded Ewen as she crosses an apple orchard; when his advances become violent, she tries to fight him off and he strangles her. The station master helps in covering up the murder, burying the corpse in the orchard.
The TARDIS has arrived on a far-distant and seemingly idyllic world. Yet the Doctor, Steven and Dodo learn it hides a terrible secret: the apparently civilised Elders maintain their advanced society by draining and transferring to themselves the life-force of the defenceless Savages.
A un oficial canadiense y a un joven de la resistencia noruega se les encarga la misión de volar un importante depósito de combustible alemán, estratégicamente oculto en un fiordo casi inaccesible, por lo que tendrán que utilizar los llamados aviones "Mosquito".
Cuenta la persecución del criminal Don Starling recién escapado de la cárcel, tras dejar malherido a uno de sus carceleris, quien supuestamente tiene que pasar por Manchester, ya que allí deben estar guardadas las joyas que robó y que tratará de recuperar.
