Tread Perilously once again opens the case files of the Special Review Unit to look back at the Elliot Stabler years of Law & Order: Special Victims Unit with an episode called "Cage."
When Manhattan SVU detectives are called to the scene in which two children survived their van crashing into the river, they discover the kids have severe reactive detachment disorder. The boy stabs Detective Elliot Stabler with a pen, but Detective Dani Beck finds herself bonding with the little girl (special guest star Elle Fanning). Soon, they discover the seedy underworld of private adoption agencies, large foster care homes, and the terrifying notion of a rebirthing ceremony. Will Dani be able to help the little girl or will she be caught up in the child's nightmare?
Captain Charlie Wright returns to discuss an episode she's never seen. She, along with Erik and Justin, consider the ravages of time and the acting of a young Elle Fanning. Justin tries to convince the others that the Ohio accent is the other "neutral" American accent. The group discusses the benefit of swaddling for children, pets and adults. Justin's infatuation with Christopher Meloni goes into overdrive. Erik's speech impediments get the better of him when he tries to say "Detective Dani Beck" and Charlie learns about the Snowbank Killer.