The Graysons try to protect their own as suspicion grows about the shooting of Emily Thorne.

The Graysons try to protect their own as suspicion grows about the shooting of Emily Thorne.

In the aftermath of a disastrous “Meet the Parents” dinner, a bickering Castle and Beckett are sent to retrieve the only witness to a murder, but they get ambushed and…

Alan and Walden attempt to convince Louis that Santa Claus is real.

Alan and Walden attempt to convince Louis that Santa Claus is real.

Meredith rethinks her plans. The interns are on thin ice following a patient’s death. Simone and Lucas are immediately tested in an emergency. Richard confides in Bailey. Teddy’s fate is…