As usual, the real problem is psycho humans. From outside the house, Clayton (likely drawn by Lourdes's hymnal hour) shouts a good morning. Everyone seems surprised, even though the first rule of bad guys not finding you is to avoid hanging out in one place for like four hours. Clayton stands outside being glib with his men, and calls Hal out. Hal appears in the doorway to say that they know about Clayton's deal, which means they need the kids alive. Clayton tries to explain to Hal what "acceptable losses" are. Lourdes is an acceptable loss! Shoot her! Hal yells at Clayton to go to hell, and then shoots at him. Genius move, Hal. A move only topped in genius by the fact that Hal has his head in a window, giving one of Clayton's men a straight shot. Clayton gives the guy permission to shoot Hal, who falls in the "acceptable loss" category and also is like the only one of the kids with a gun.
But then! Clayton's guy doesn't get a chance to shoot Hal, because he himself is shot! By Pope! He always pops up in the most convenient places, doesn't he? He tells Hal to get his head down, then asks Clayton how his Skitter deal is working now. Clayton's men turn their fire toward Pope, and he eventually gets shot in the leg. He turns around from his tree shield and finds Tom also pointing a gun at him from behind. Tom is all, "Now I have to deal with this asshole, too?" Pope doesn't go into all the details of how he got there, but says that he has no tolerance for anyone who deals with the Skitters. Pope wants to shoot as many of Clayton's men as they can, but Tom knows they're outnumbered and that this will put the kids in danger. He removes Pope's ammo, then yells at Clayton to hold his fire because Pope's dead.
From inside, the kids can hear Tom's voice as he emerges from the trees with his hands in the surrender position. He tells Clayton that they know about his series of lies, and that Porter is on his way. Tom is offering himself up as a hostage, to protect the kids. I don't know why this is more appealing to Clayton than just shooting him, but Tom's ruse works. Tessa's dad takes away Tom's guns, and Clayton orders him to call out the kids. He does, which really befuddles and upsets Hal. Tom points out that Hal would have kept fighting and Clayton would have killed him, which he couldn't let happen. Hal notes that going back is just as bad, and perhaps worse, but Tom says that the first rule of combat is to survive. Easy for him to say when he's not about to be sold into zombie slavery.