Karole Foreman

An escaped lion puts lives and relationships in danger; Lexie hears Mark talking about moving in with Julia; Teddy begins to come to terms with Henry's death; Callie asks Arizona about her past relationships.

With the help of Special Agent Genny Shaw (guest star Tina Majorino), the Jeffersonian team identifies the remains of a discount shopper and “extreme couponer” who was dragged along the road by an 18-wheeler. Meanwhile, Brennan is adjusting to her first day back at work after giving birth, and Cam disapproves of her daughter’s romance with intern Finn Abernathy (guest star Luke Kleintank).

The team's holiday plans are put on hold when a murder investigation leads to the discovery of a newborn baby who has no identification and no apparent ties to a family.

When Jake is asked to negotiate a hostage situation with a jewel thief, he learns that the culprit seems to be a familiar face; Gina and Amy help Charles manage the high demands of his food truck.

Nic and Mina treat a patient battling a failing heart VAD, forcing them to find a new battery to save her life; Conrad gets a call from a patient who is in crisis; Cain tries to get close to Bell's business partner from the supplement company.

Ghost Rider makes a surprising return; Coulson and the team work to stop Aida from ending the world.