After the party return from the excursion, the ship's captain sabotages the ship by engineering its collision with three large meteors. The resulting collision kills most of the passengers on board and draws the ship to an extinction level collision with Earth. The Doctor makes contact with Midshipman Alonzo Frame, a crew member who survived the collision, to help him stabilise the ship. En route to the bridge, the Doctor's party are repeatedly attacked by the Host, androids resembling angels who were programmed to kill the survivors. The Doctor breaks from the party and attempts to reach the control point for the Host. He is taken to the Host's leader, former cruise line owner Max Capricorn, who is a head attached to a mobile life support unit. Capricorn was bitter about being forced out of his own company and plotted the Titanic's inevitable collision with Earth to bankrupt the company and frame the board of directors for murder. To save the Doctor, Astrid rams Capricorn with a forklift, which sends both of them over a ledge to their deaths.