Prisoner of the Judoon is the first serial of the third series of The Sarah Jane Adventures. It was first broadcast on 15 and 16 October 2009.
The episode involves Judoon Captain Tybo chasing down an escaped prisoner on Earth charged with the destruction of twelve planets.
An alien life pod is ejected ten miles from the impact zone of a Judoon spaceship and crashes into an abandoned council estate. After tracking the pod, Sarah Jane is possessed by the pod's occupant, the escaped Veil prisoner Androvax. Androvax is charged with the destruction of twelve planets after witnessing the destruction of his own planet. He uses the supercomputer in Sarah Jane's attic, Mr Smith, to access the schematics of a spaceship that the United States military re-engineered from the debris at the Roswell incident. From these schematics, Androvax makes the nanoforms at a nanotechnology company construct a new spaceship.
Assisted by the Judoon Captain Tybo, Luke, Clyde, and Rani follow the