Passion comes calling when a man suffering through an unhappy marriage in 1920s England runs into first love.

A group of Millwall supporting hooligans travels to Spain for the 1982 World Cup Finals soon after the start of the Falklands War. One member of the gang is bent on avenging a personal loss.

UNIT is providing security cover at an experimental drilling project at Eastchester, designed to penetrate the Earth's crust and release a previously untapped source of energy. Soon, however, the drill head starts to leak an oily green liquid that transforms those who touch it into vicious primeval creatures with a craving for heat. The Doctor is accidentally transported "sideways in time" by the partially repaired TARDIS control console into a parallel universe where the drilling project is at a more advanced stage. Thwarted by his friends' ruthless alter egos, he works to save both universes.

When scientists in the Antarctic uncover a mysterious seed pod, the Doctor is called in to investigate. He soon realises it is extraterrestrial and extremely dangerous. At the same time, however, ruthless millionaire plant-lover Harrison Chase has learned of the find and decides he must have the pod for his collection of rare and beautiful flora. Meanwhile the pod itself harbours intelligent life with sinister plans of its own...

A married man forms a liaison with a woman he meets on a train, and is divorced by his wife who allows him access to their daughters on Sundays, which they usually spend at the zoo.

The Doctor, Jamie and Zoe return to Earth and become embroiled in the schemes of Tobias Vaughn. They meet up with an old friend, Colonel (now Brigadier) Lethbridge-Stewart, and some old enemies, the Cybermen.

When the Second Doctor, Polly, Ben and Jamie visit a human colony that appears to be one big holiday camp, they think they have come across a truly happy place. Yet a shadowy presence soon makes them realise that the surface contentment is carefully controlled.

The cast and crew of The Seeds of Doom look back on the making of this story.

The original 1967 master recordings of ‘The Macra Terror’ were lost soon after the programme’s original transmission. However, audio-only recordings have survived and have been used here to create a brand new fully animated reconstruction of this lost classic.

Ludo French stars in a sci-fi series, but working with the arrogant, conceited, always dissatisfied man pushes the production to its limits.