What is the connection between the legendary Loch Ness Monster and a stranded spaceship whose occupants can assume the appearance of anyone they choose? The Fourth Doctor (Tom Baker) and Sarah Jane Smith (Elisabeth Sladen) had better find out the answer... before it's too late, in "Terror of the Zygons." When a scientific team on a world at the edge of the universe is attacked, the Doctor and Sarah Jane must deal with a deadly anti-matter creature, in "Planet of Evil." "Pyramids of Mars" finds the Doctor and Sarah Jane in 1911 England, where an archeologist's discovery unleashes a menace that stretches from ancient Egypt to the Red Planet and threatens all life on Earth. Next, thinking they've arrived in a quiet English village, the Doctor and Sarah Jane soon realize the townspeople are robotic doubles and the "village" is an alien training base readying for "The Android Invasion." An alien scientist is keeping alive "The Brain of Morbius," a sinister renegade Time Lord, and plans to transplant it into a new body. Can the Doctor keep his head on his shoulders as he and Sarah Jane try to prevent Morbius' return? Finally, an Antarctic expedition uncovers a pair of alien pods that contain monstrous plant creatures. When a deranged millionaire plans to use one of the monsters to take over Earth's plant life, the Doctor must nip his scheme in the bud, in "The Seeds of Doom."26 episodes on 8 discs. 14 1/2 hrs. Standard; Soundtrack English; Subtitles English; documentaries; featurettes; audio commentary; interviews; more.