Struggling under the weight of dozens of prisoners, Camille and Young fight to find a solution to their dwindling food and water resources. Rush, who is keeping the extent of his knowledge of Destiny secret, finds a potentially habitable planet - with a nonresponsive stargate - and manually drops the ship out of FTL. He covers the lie by saying that the FTL drive was damaged by the pulsar, and Young assembles an away team to take a shuttle there in hopes of replenishing their supplies. Rush has visions of his late wife guiding him through his decisions, but when the shuttle departs, Franklin appears, telling Rush that fatigue made him overlook the the planet's spinning atmosphere.
Rush radios Scott to warn him of the extra turbulence, but soon the shuttle's engines fail, causing a devastating crash that crushes Riley's legs - TJ knows within moments that Riley won't make it, and stays with him as some comfort. Left without transportation, the rest of the team is charged with the task of getting the failed stargate - buried under an avalanche of rocks - operational before Destiny jumps away.
On the ship, the Lucians are divided: Some of them have been offering strategic information in hopes of better treatment, but another contingent starts a riot. While Varro is contrite, Young decides that, once the stargate on the planet is running, all Lucians will be deposited there and left. But Young gets a prickly surprise when Telford informs him that he's used the communication stones to contact Earth military personnel and has orders to retain a select group of Lucians as a strategic move.
In the quiet of the ruined ship, with Riley's life slipping away, TJ confesses to him the story of her voyage to the alien planet, where she believes her baby is safe. Unbeknownst to either of them, Dr. Park is quietly, tearfully listening in. Hundreds of meters away, the stargate rumbles to life, and Scott and the crew return to Destiny to report on the situation. Young goes to the planet to visit Riley in his final moments, asking TJ for solitude. The two men comfort each other, but when Young attempts to say goodbye, Riley begs that he end his pain. Young solemnly agrees and, placing a firm hand over Riley's nose and mouth, extinguishes his life. The team gravely returns to the ship, and attempt, once again, to make life in space as normal as possible. None have so difficult a task as Rush, however, still haunted by visions of his wife, and hoping for more helpful information from the specter of Franklin. And grief is soon overshadowed by the next crisis: The ship is headed straight for a celestial body, with no apparent recourse.