CYBERLEADER: Then activate. DOCTOR: A bomb. It will be wasted. Let the earth see the effectiveness of Cybertechnology©. Stand by. VANCE: Where? Why a bomb? [SCENE_BREAK]
Back on the freighter the Doctor and Adric slowly exit the TARDIS.
Plan: A: The Doctor; Q: Who discovers a bomb planted by the Cybermen? A: the Earth; Q: Where is the freighter that the Tardis materializes on orbiting? A: mysterious murders; Q: What is being committed on the freighter? Summary: The Doctor discovers a bomb planted by the Cybermen, disarms it and then materializes the Tardis onto a freighter orbiting the Earth where mysterious murders are also being committed.