Doctor Who: The Curse of Peladon

Six people awake aboard a starship which has been sent to the other side of the galaxy. They cannot remember who they are, or why they're there, but they do remember what they are capable of ... and it seems one of them may be a traitor.
While they attempt to travel back to their homes, they are waylaid by problems, people, and a strange enemy with far too much power for her own good.
Meanwhile, the other side of the galaxy is at war between the Solar Union and a group of slaves who are attempting to claim what they feel rightfully belongs to them.
Making new friends, new enemies, and meeting old enemies they can't even remember, the crew must determine who their real nemesis is before it's too late.