The Doctor is working the controls in the TARDIS. He accidentally transports his former companion Tegan Jovanka on board. She is less than happy about this, but reluctantly agrees to help him. He reveals that two Sontarans are on board. They have a powerful vitrox bomb with which they intend to blow up the ship. When the Doctor asks how Gareth knew where all the TARDIS controls were, he says "well I've seen you fly the TARDIS on telly".