13. Ascension

Complete story — includes the ending

Molly agrees to take a shuttle to the Seraphim to re-establish communication, as well as install a replacement module to redirect the station back to its original orbit. She wears a special suit to avoid contamination with the "spores" of the life form. In the Humanichs lab, Ethan nearly presses the detonation button on Gavin's cell phone when John wants to temporarily shut him down. Investigating the device inside Ethan, Kern identifies it as an explosive that is highly volatile, and says removing it could set it off. Molly docks and boards the Seraphim, and Sean tells her that "Katie" was not real. While searching for the replacement module, "Katie" traps Molly in a room. Molly overcomes the being to escape, but her glove is dislodged. Sean sees an image of Molly trapped in the room, but Molly assures him that she is elsewhere on the ship. At ISEA ground control, the Offspring breaches the facility. At the lab, John wakes Ethan to tell him his fate. Ethan volunteers to go to the ISEA control room, knowing that the Offspring's mind control will not affect his brain. Ethan manages to get manual override returned to Molly, but at a price: he had to heat up his body to simulate a human hand to enable override control, and the explosive is now in danger of detonating. At home five days later, Molly and Sam discuss whether the Offspring is alive, with Molly saying she is certain that he is. Molly and John lament the loss of Ethan. Ethan then appears in a body-less form on their monitors and speaks to them.