While traveling on board of the spaceship Odyssey1 to Titan, the astronaut John awakens from the three-month- hibernation cycle to perform tests on the systems. Together with him, are Captain Franks and Nash to test the systems and communicate with Houston. The computer system warns that disorientation is normal after the hibernation since the used drug has side effects. John forgets the last name of his girlfriend Zoe Morgan and when he sleeps again for the next cycle, he recalls how the leader of the mission, Sam Napier, introduced the engineer Zoe Morgan to him and how they became lovers. When John awakes again, a panel on the ceiling hits his head and after the inspection, they realize a structural damage on the hull, but the computer has not recorded any collision along their journey. Nash becomes paranoid with a possible structural failure and what might happen to them after the slingshot maneuver in Jupiter that will increase their speed to Titan and tries to convince John to change the course of Odyssey 1 back to Earth. However, Capt. Franks overhears their conversation and together with John, successfully performs the slingshot maneuver. They hibernate again and one the next awakening, Nash seems to be completely hallucinated and has sabotaged the reactor using John's password. When John sleeps again, he sees Capt. Franks apparently killing Nash. When he awakes, he asks for Nash and Capt. Franks carries a pistol everywhere. Now John becomes paranoid and when Capt. Franks tells who Zoe is, John questions his sanity and whether the Captain and Nash are real.