chunk: Doc finds that Bowman killed herself. Her body is taken to sickbay, where it merges with Sixpack's. When the crew discovers the mutating bodies, they decide to dump both of them in the ocean. As they are about to "flush" the cadavers, the body bag begins squirming. Believing someone inside may be alive, the crew opens it. The creature inside claws Cobb before they eject it. They realize that Leviathan was experimenting on its unwitting crew with mutagens. The mutagen was mixed with the vodka that the crew, and later Sixpack and Bowman, drank. The ship was scuttled when the experiment escaped control.
  A tentacle was severed when the corpses were ejected; it mutates into a lamprey-like creature that attacks DeJesus in the kitchen. Jones seals the kitchen's pressure doors and goes for help. He asks Cobb to watch the door, but when he searches for a weapon, the creature assimilates DeJesus and rips its way out of the kitchen. It then grows tentacles that attack the crew.