Lily Knight

A girl can't remember killing her best friend, despite holding the murder weapon, so Jane finds a way to jog her memory.

A patient with Alzheimer's disease brings back difficult memories for Richard and April, while Jackson struggles to return to normal life.

A young girl is found murdered, and when Megan arrives at the scene, she finds Tommy covered in blood. As the evidence piles up against him, Tommy claims he cannot remember what happened the previous night.

Jane and Maura literally race to find a killer at the Boston Marathon who shoots runners during the event.

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.

Buffy falls into a profound stupor after Glory kidnaps Dawn. Willow goes into the mind of the slayer, to bring her back and save the world.