Doctor Who: Planet of Evil (TV)

At the very edge of the universe stands Zeta Minor, a densely jungled world that uncovers a portal to an anti-matter universe. But when a geological expedition tries to use this fantastic power source to save their own dying planet, they start to fall prey to an unseen killer. When the Doctor and Sarah Jane land on Zeta Minor, only the leader of the expedition remains alive... infected by the entity from the anti-matter universe.