Continuity mistake: When the hostage smacks Nica and she's on the floor, the position she's in changes between cuts as she's sort-of rolling around and Chucky takes back over her body.
Other mistake: When Nica reverts back to her normal self and collapses, when she says "Where am I?", her legs noticeably move a few inches. She's paralyzed, so this shouldn't happen. It happens at least one other time during the scene, albeit more subtly. (When Chucky is in control, he's able to move her legs almost like a flesh-puppet, but when she's in control, she can't.)
Continuity mistake: As Tiffany storms off after getting into an argument with Nica/Chucky, Nica/Chucky teleports about ten feet between cuts.
Continuity mistake: When Tiffany talks about wanting Swedish meatballs, her left hand goes from down by her side to up on her hip between cuts.
Continuity mistake: When Tiffany asks the hostage if he's "enjoying the show", Nica/Chucky goes from standing on her knees to sitting between cuts.
Continuity mistake: In the flashback, as human Chucky watches the girls having sex on the bed, his arm holding the cigarette goes from all the way out to bent up at a 90-degree angle between cuts.
Continuity mistake: When Michelle and Nathan are fighting, right before Nathan grabs the wine bottle and walks off, he puts his hands up by his forehead. In the next shot, they're suddenly down by his shoulders.
Continuity mistake: When Nathan comes back in after throwing out Chucky, Michelle makes a motion as though she put down the wine bottle, then starts to turn back to Nathan. In the next shot, she puts down the bottle and starts to turn back to Nathan a second time.
Continuity mistake: After Lexy sees Nathan with the doll, Michelle's wine glass is empty. She picks up the bottle and pours a small splash into her glass. Then, the next time we see the glass, it has at least a half-cup of wine in it - far more than the little splash we just saw her pour.
Continuity mistake: When Lexy is about to start the dishwasher, Michelle's left hand goes from up by her chest to down by her side between cuts.
Continuity mistake: During the dinner scene, right after Jake's phone goes off, as Logan says "In a week or two we're gonna have you back out there runnin'!", his fork flips 180 degrees in his hand.
Continuity mistake: When Lexy is beating up the Tommy doll, when she throws it on the floor and starts slamming it, Nathan's hands appear on his knees between cuts when it cuts to the high-angle shot. In-between those same two shots, Lexy and Chucky also rotate about 45 degrees towards Nathan.
Continuity mistake: As Lexy approaches Caroline after she gets the Tommy doll, her hand goes from clenched in a fist to open between cuts.
Continuity mistake: When Nathan gives Caroline the Tommy doll, the way she hugs it changes between cuts.
Continuity mistake: When the kids are spraying themselves in the basement to disinfect themselves, Lexy goes from facing down to facing up between cuts.
Continuity mistake: Right before Jake says "Hey guys, I got an idea!" in the hospital basement, Lexy's hands go from on, to off, to back on the dumpster between cuts.
Continuity mistake: When the kids are looking at the dumpster in the hospital basement, when Devon says something about waiting for Chucky to come to him, Lexy's fingers go from being balled up to extended between cuts.
Continuity mistake: When Lexy's dad says, "Your mother and I know you want what's best for Caroline," at the beginning of the episode, Lexy goes from looking at her mom to looking at him between cuts.
Continuity mistake: When Mayor Cross comes in to see Caroline right after the title sequence, Caroline's finger keeps going on and off her pad instantly between cuts.
Continuity mistake: When Caroline sees Chucky and screams at the beginning of the episode, she goes from having her head down on the pillow to sort of leaning up between cuts.
Answer: They were blamed for the death of Jake's foster brother, which was deemed a terrible accident, and they were sent to the reform school as a punishment. Presumably, when they had to leave the reform school given what happened, they were instead given community service as punishment.
TedStixon