The Doctor and his companions learn of a two-century-old capsule discovered by the colony's scientist, Lesterson. The Doctor sneaks into the laboratory, with Ben and Polly following, where they discover two Daleks inside the capsule, with a third missing. The group is discovered by Lesterson; the Doctor asks him where the third Dalek is, and the scientist reports that he hid what he assumed was a machine, with the intention to reactivate it. Later, Lesterson and his assistants manage to revive the Dalek and Lesterson removes its gun stick after one of the assistants, Resno, is killed.