Meredith finally tells Derek about her pregnancy and miscarriage; during a surgery, Cristina experiences PTSD; Bailey won't let Alex operate until he has the bullet in his chest removed.
The team searches for a teenage girl who disappeared after trying to dodge the advances of an aggressive boy.
The romantic tension between Joe and Stella boils over when a jealous Joe barges in on her date with Van Dyke. They argue, and Stella storms off.