Boylan says he was lucky, and spins the cylinder. "Only had one bullet," he said. And luckily you got it out before the Sixer outed you as an ally!
Meanwhile, Jim is still chasing the other damn Sixer around, and they're up on the roofs for a little while, and then down again, and we don't see a single other soul in the entire compound, and then the Sixer slips out through the rails in the fence and Jim is set to follow when arrows thud into the fence around him. Taylor runs up in time to see the Sixers standing there, looking all cool and defiant instead of making themselves scarce. "Mira!" yells Taylor.
Back at the infirmary, Skye has made it back in time to see Elisabeth to get the chip into the biobed and examine the parasite, which is ... dead? So the whole thing where it slithered back in while Hunter writhed was a red herring? Oh, well. I suppose Josh needs a nemesis, even if it's just to provide the third side in a love triangle in which Skye has to choose between two boring whiners.
It's daylight. Over at the lab, Malcolm is looking at the busted cabinet where the box was locked, with Taylor saying it was a surgical strike: Mira knew exactly where the box was. Malcolm is shocked that Taylor thinks there's a spy in the camp. "I don't think. I know," says Taylor. He tells Jim that they have to find the spy because it's unacceptable. I like to think that even Jim would figure out that a spy in your midst isn't ideal. Jim starts imagining who he'll get to punch to flush out the spy.
Maddy and Mark wake up, cuddled in each other's arms. Good job, you know, KEEPING WATCH, at least, and then Maddy realizes her father's going to be looking for her, which, when it turns out not to have been true, is a pretty sad statement, and then she thanks Mark for a perfect day, and they hold hands for the walk back to the colony.
Back in the Shannon home, Josh lounges in the living room while his mom suggests asking Skye over for dinner one night, and he's all "yeah yeah" and then sits up, alarmed, when he realizes she's serious.
And then Jim strolls in, talking about how awesome the big dinosaur at the gate was -- the dinosaur that was moments away from devouring them all -- and then the power comes back on and Elisabeth is all, "Great, I can make coffee," and then EVENTUALLY Jim is all, "Where's Maddy?" and I guess it hadn't occurred to Elisabeth to check, and then out pops Maddy, freshly washed and pretending that she got a lot of work done by chem lamp. Apparently she still stinks, so I guess that's something. Maddy starts in with the how-obvious-is-it-that-I'm-lying excuses about the garbage incinerator getting stinky with the power out, and she walks away, all pleased with herself, while the jaunty everything's-OK-again acoustic guitar crescendos. I hope she never finds out that Elisabeth remembered getting COFFEE before she remembered to check on her daughter after an EMP, a shockwave, dinosaur attack and Sixer invasion.