A child is locked in a bathroom, and he begs his mother to stop whatever she's doing. It turns out that what she's doing is searching her dresser for a pair of scissors! Uh-oh. Then it turns out that the kid is in a hallway and I'd guessed wrong about the bathroom thing - but who has an interior opaque glass door on anything but a bathroom?
At roughly the same time Joe is meeting one of his ex-wives for breakfast. It seems she'd like for them to get back together! But will him constantly being called in to battle serial killers interrupt their lives once again? He invites her over for dinner one night to see if they can work.
Okay, the mother claims the situation isn't as sinister as it might seem - she's called the police, claiming that she dropped the kid off at his grandmother's, but didn't know what happened to him since then. This seems like quite a lie, since the drop-off scene was two days earlier. If she was really supposed to have dropped the kid off at his grandmothers, wouldn't said grandmother have called to let her know that the child never arrived?
I'm not entirely clear why the team is working on this case at all. A single child was abducted two days ago. It's not like they're saying that this is part of a series of St. Louis child abductions, and that they have to put a stop to it. This one kid went missing, and the entire FBI profiling all-stars team showed up? That's super-unusual for this show - unless of course the case is within easy driving distance, like the mall. Then again, in the mall show, they actually suspected the abduction was the latest in a series, even though it wasn't. So I really don't know what's going on here...
The kid is still alive, luckily (although little kids never get killed on the show, so I'll understand it if you're not surprised), and being cared for by a young guy who keeps him locked in a bedroom. He also refuses to tell the kid why he's being held, or where the mother is. Mysterious!