It's a good thing for him Jim doubles back with the jeep, and they get inside to safety while Terra Nova security fire sonic weapons at the creature. Having dealt with that, it's now time for a standoff with the Sixers inside, who are there to make a trade: meteoric iron for their man (the guy who just tried to kill Taylor), medical supplies and ammo. Taylor agrees to the trade (except for the ammo part). And Jim is so special that the Sixers' leader, a woman named "Mira"? "Mirra"? is all, "You're new. Welcome to paradise."
Having witnessed the confrontation with the Sixers, Elizabeth is not too pleased that Jim's going to be a cop again, and she stomps off -- because women on television and in movies are always mad at their cop husbands for being cops -- to the clinic to help pull together some medical supplies. Meanwhile, outside the gates, the kids are drinking moonshine from their own still, so there's hope that the kids of the future past will act just as stupid as today's teenagers.
Over at the clinic, Taylor asks Elizabeth about why they chose to come here, when they could have had it fairly sweet back in the future, with one of those fancy houses in a dome. She says she didn't want that for her kids: "I think they deserve the chance to be part of something real, something new, something that has a future." Taylor knows what that's about; he had a son who came in on the Second Pilgrimage. But his son went missing a few years ago. "I haven't given up on him," he says. Elizabeth asks him to be careful on her husband, because she's the one who stays up late worrying. I guess, if there are any actual security problems, she expects Taylor to keep Jim on the bench?
Outside the gates, Skye and Josh are slicing more fruit using some sort of spiny skin or appendage or whatever to a dinosaur that "mostly hunts at night," which naturally means it's coming for them very soon, and when they get back to their transport, they find it's been stripped of power cells by the Sixers who just left Terra Nova. Fortunately, the Sixers' own transport is still there, but it's now occupied by a badly wounded Sixer who only lets them hide from the menacing slasher when he recognizes Skye and/or would like to sleep with her. Josh acts like a big baby the entire time and freezes up every time something freaks him out, which is every time something happens.
And back at Terra Nova, the kids sneaking out has been spotted on the extra-special holograph security cameras that people check only after several HOURS, apparently, and Elizabeth blames this on Jim, who is going to run on out to get his son back before dark. Taylor's security chief, Guzman, has a daughter with the group as well, and Elizabeth persuades her way into the rescue excursion by pointing out they'll need a medic. Instead of saying, "How about we don't take BOTH parents in a family," Taylor just brings everyone along.