The Excalibur picks up a Senator who comes on board with a guy. He then instructs them to go to Earth but doesn't tell them why. Along the way they pick up a distress call from Lochley who is trapped in space. They pick her up over the Senator's objections. When they reach Earth a vessel comes out of Earth and explodes and a life pod comes out. The Senator tells them to bring it on board. And when they do, they discover that an experiment is being planned to take place on the ship.