Sarah Jane's parents realise they make oranges rot and flowers die, and decide to end all the bad weather and save Sarah Jane. Clyde and Rani are trapped in a devastated alternative world with the survivors of mankind, where they make a desperate bargain with the Graske. Rani joins Sarah Jane back in 1951, who has been reunited with her long-lost parents. There they must find a way to defeat The Trickster.
