The Daleks enslaved Thomson and forced him to work in their Bedfordshire mine until he escaped. He was recaptured by Robomen and led, along with the rebel Jack Craddock, to the Dalek flying saucer in Chelsea, London. Terrified of going back to the mine, he attempted to convince Craddock that they could make a break for it before being taken aboard, but Craddock warned him against it. Thomson pushed Craddock away and tried to escape, but was surrounded by Daleks. The Dalek Saucer Commander ordered the other Daleks to kill him, which they did. (TV: The Dalek Invasion of Earth)