 Sam and Bailey get caught up in a jewel heist by a trio of mentally unbalanced crooks, named Randy, Kate and Stevie, that quickly turns into a hostage situation within the jewelry store. Sam and Bailey struggle to profile the perpetrators and their relationships with one another before any lives are lost. Sam tries to reason with the ringleader, Randy, to give up. Meanwhile on the outside the building, John quarrels with the pompous and overzealous police commander who wants to catch or kill all the perpetrators, even if it means that all of the hostages will be killed.