So while John and Riley stare at magazines while Cameron gives them the stinkeye from a nearby patio, Sarah, Derek and Charley find Chrome Artie's put Michelle's chair on some moustraps wired to plastic explosives. "They never let you have a good day, do they?" asks Derek.
They take the duct tape off Michelle's mouth, and instantly regret it, as she starts crying and whining, like you'd think she's the only person who's ever been wired to plastic explosives! Derek goes off in the direction Michelle says Chrome Artie went, but he only finds out that Chrome Artie disabled their truck. It finally occurs to Sarah that this all might be the trap, and since Chrome Artie could have killed them instead of messing with their truck, it must mean that the bomb is a fake. So she does the same thing people do in action movies: she quickly rips off a load of the plastic explosives. It turns out to be modeling clay -- good thing, too, or they'd still be picking up the pieces. Sarah gets on the phone to warn John and to tell him to stay with Cameron (whom he's already ditched).
Meanwhile, Derek comes across bugging equipment that pulls the cell signal out of the air. Not only that, but a nearby cell phone tower seems to be wired. This one, however, is not faked, and Derek runs through the house yelling for everyone to get out before the toppling pole kills them all, like in a real-life version of Boom Blox.
Everybody's OK, at least they think so at first. But Michelle's bleeding badly. Sarah says they'll send help as soon as they can, but Michelle's not going to hear of her husband's ex-girlfriend showing her up, and hobbles with the gang as far as the highway, where they hijack a van. But the bumping and the jostling is too much for Michelle in the back; she's bleeding out. Charley screams at Sarah, who eventually stops the van.
Chrome Artie, unfortunately, traced the cell phone call to John, and he calls him now, pretending to be Sarah and ordering him to meet "her" at the nearby pier. John's got to ditch Riley, which pisses her off, and she says she's not afraid of Sarah, like John is. John looks miserable at this, but it could also be that he couldn't keep his eyes of Riley's chest.