 Policeman Tom Campbell (Cribbins) stumbles into the TARDIS on a normal day and ends up being taken to 2150 A.D, by Dr. Who (Cushing). The future seems to be deserted, but the group soon finds out that the world is currently being controlled by the evil DALEKS. Those who have still survived are in hiding, to prevent them from being turned into Robomen. Dr. Who teams up with the survivors in order to take down the Daleks.