John gets clean for Debra. Terra learns John’s back. John puts his sister through the ringer.

Murtaugh and Riggs respond to a robbery that takes place 20,000 feet in the air. The investigation turns into an ongoing hunt for an unreliable father, with his daughter being…

Meredith breaks a hospital record; the doctors are sent scrambling in the wake of a massive overdose within the community; Jackson wants to take Maggie camping; Levi and Nico’s relationship…

A patient gives Meredith some clarity on her dating situation around the holidays. The strain on Bailey and Ben’s marriage comes to a head. Meanwhile, Betty drops a bomb on…