The team search the desert planet and its lakebeds for a source of calcium oxide to fix Destiny’s ailing air filters. Rush, Greer, and Scott head up one group, while Wallace leads the remaining survivors. Wallace’s team soon give up on this task and turn their attentions to inputting addresses into the Stargate. When Rush finds out about this he is dead against it. On the ship, Young goes about making repairs while Chloe gets in contact with her mother and informs her of the situation. Back on the planet and Scott stumbles across a strange cloud of dust. This turns out to be just what the teams were looking for. Gathering the lime, Scott returns to the Stargate. It takes a big team effort to keep the gate open, but Scott manages to bring the lime onboard. Soon enough everyone is able to breathe properly.