The SS Lucy Gray was a spaceship that on the evening of the solar storm, the last humans wanted to use for their evacuation from Earth. Some of the passengers evacuating included Eleanor, Jake, Frank, Rob, Sarah and Lara, and the ship was crewed by Barnaby, Eleanor, George, Jake, May, Tina Lockheart and Jason Venezia among others. Doctor Sullivan was the only doctor on the ship and Roy Calvert was the captain of the ship. Ivy was the computer.
On the evening of the solar storm the Eleventh Doctor's TARDIS was brought onto the ship by some of its crew members. The Eleventh Doctor tried to get access to the ship by becoming part of the crew and by helping passengers and other crew members. Just when humans and Silurians had decided to travel through space together and protect each other against alien threats, a Dalek ship crashed on the Lucy Gray. The Silurian space ship, including all Silurians, fell back to Earth while the Lucy Gray stayed in space. The Doctor used his TARDIS to move the Daleks space ships next to a black hole, far away from any plant. (GAME: Evacuation Earth)
Centuries later, the TARDIS would be hit by asteroids and crash on the ship. The Lucy Gray now sported a different appearance due to the centuries of repairs. Amy and the Doctor discovered that all the passengers and crew members were missing, with only Ivy remaining. She tried to make sure that the crew members were safe. Due to the presence of Cybermen on the ship, Ivy put the crew members into cryo to make sure that they could not be harmed by the Cybermen. The Doctor destroyed the Cybermen by overloading their systems. Shortly after that Daleks invaded the ship. The Doctor came face to face with the Dalek Supreme and their ship was fired into the sun. The crew was released and the Lucy Gray returned to Earth. The Doctor and Amy left just before the systems shut down. (GAME: Return to Earth)