The Ghost Ship (Stingray) to the World Aquanaut Security Patrol (WASP) in Marineville with orders to investigate. Captain Troy Tempest (voiced by Don Mason), Phones (voiced by Robert Easton) and Marina set off in "Stingray" accompanied by Commander Shore (voiced by Ray Barrett). "Stingray" arrives at the "Arcadia"s last known position and encounters the galleon, which does not respond to Troy's hails. Shore and Phones board the ship and find its upper decks deserted. However, they fail to notice a platform built into the floor of one of the cabins and are lowered into a watertight section in the vessel's depths. There, they are
The Lodger (Doctor Who) of International Rescue," which is a reference to both Captain Troy Tempest from "Stingray" and International Rescue from "Thunderbirds", both series created by Gerry and Sylvia Anderson. Steven Cooper of "Slant Magazine" also saw a reference to the Emergency Medical Hologram from "", as the Doctor continued "Please state the nature of your emergency." "The Lodger" made up the seventh and final production block of the series along with "Amy's Choice". The read-through for both episodes took place on 17 February 2010 in the Upper Boat Studios. The story replaced another one, "The Doctor's Wife", when the latter was pushed