Tom peers through his binoculars and sees the first group of kids, but Ben is not among them. A second group comes through and Tom thinks he sees Ben, but then realizes it's another kid. And then! Mike takes a look and recognizes his son, Rick, walking by the building. He totally freaks the fuck out, as I guess you probably would if you thought that maybe your kid was dead but then you saw him as part of some zombie mind controlled chain gang overseen by hostile alien warlords. Mike cannot keep it in check, which is I think a bad space to be in when you're the second other black guy. He runs out from behind their barricade and grabs a non-responsive Rick, saying, "It's dad. It's dad." Rick has awesome hair, but vacant eyes. He could totally give a rat that he's being rescued right now. A Mech comes stomping up and Tom detonates the car bomb. I wonder if the Mech can just straight-up be added to the scrap metal pile now?
When the bomb goes off, Karen and Hal figure that Tom and Mike must have gotten Ben. They run out of their hiding spot and Dai comes screeching around the corner with the getaway truck. Tom helps Mike throw Rick in the truck bed and then says he's going back for Ben. En route, however, he encounters a Mech on the rooftop who shoots his laser pointer. It misses Tom, but lands close enough that the impact sends him flying. Hal and Karen shoot at the Mech as Dai picks up an unconscious Tom and throws him into the truck. And then! Dai just totally drives away, leaving Hal and Karen behind! That is SO NOT COOL! This is what happens when mommies and daddies have to fight. After the truck leaves, the Mech jumps to the ground and stands face to face with Hal and Karen. The Mech goes, "Unnnnnnnnghhhhhhhhhhhh," as it is wont to do. Hal and Karen's expressions, which read, "Holy fuckballs," pretty much say it all.
When we return from a commercial break, Tom comes to with Dai, Hal and zombie Ricky in some sort of building. I'm not sure exactly what they're doing there, other than it's a very atmospheric setting for a dramatic event that (spoiler, kind of!) may or may not be coming. Tom asks where Hal and Karen are and is not happy when Dai tells him that a Mech was on their tail and they couldn't wait. I'm with Tom on this one. That's lame, Dai. It's a quarter of a mile or less to the school, so Tom tells Dai and Mike (and by extension zombie Rick) to go there. He's going back to save Hal and Karen. Dai urges Tom to come with them and at least get weapons and reinforcements, but Tom says there's no time. At least someone has the appropriate sense of urgency in this scenario.