Gabi and Sierra enter one of the watchtower's of the military camp and survey the damage. Sierra cleans her knife in the leg of her suit and tells Gabi she has no where to go. Gabi asserts that she does. Sierra isn't convinced Gabi does know a safe place as she would be there already. Gabi says they head south, towards Mexico. Sierra shoots down the idea, saying that the boarder is crawling with infected as when the infection hit people tried to head both north and south. Gabi assures Sierra that there is a tunnel ''under'' the boarder. Gabi's boyfriend was boarder patrol and he sealed the tunnel after the infection hit and then went to check it out, with Sierra noting that he hasn't returned. Gabi persists- saying that Sierra needs a safe place and that she (Gabi) needs help. Sierra reluctantly agrees, but reminds Gabi that she (Sierra) doesn't need Gabi. (thetvdb.com)