Lily Knight

A young woman is stabbed to death and dumped in a forest. The woman's best friend is the prime suspect, but could a third party be involved?

A patient's condition sparks a conversation between Richard and Maggie about Alzheimer's disease; April and Jackson struggle to return to their normal lives and Arizona is faced with the reality that Callie is moving on. Meanwhile, Meredith reveals her biggest fears about Derek.

A brutal storm rocks Chicago; Halstead encourages Dr. Grace Song to go against her own findings for the benefit of their patient; Asher rushes to the hospital to help Archer's pregnant patient; Maggie's concern for Ben consumes her.

A shooter targets runners at the Boston Marathon. Jane and Maura must conduct their investigation in secret to avoid a panic and catch the killer before another shooting occurs.

A terrifying being is summoned - one that even the possessed Sister Mary Eunice is scared of. As Kit and Lana resort to desperate measures, a despairing Sister Jude finds she can no longer run from her past.

Buffy and the others flee Sunnydale when Glory discovers Dawn's identity. Meanwhile, Giles and Spike are wounded, while Tara falls apart, and Dawn finds out that she can destroy the universe.