The Infinite Quest

The Doctor and Martha follow a trail of clues across wild and wonderful alien worlds, to find the location of the legendary lost spaceship, the Infinite. They soon discover that they are not alone in their quest — the evil Baltazar is also searching for the ancient starship, and wants to use its powers in order to destroy Earth and rule the galaxy.

Will the Doctor and Martha succeed in The Infinite Quest?

This is the full-length version of the animated series, first broadcast as part of Totally Doctor Who.