Lily Knight

When a girl is found covered in blood and holding the murder weapon that killed her best friend, she becomes an obvious suspect, though she can't remember anything. But Jane, believing she's innocent, engineers a risky maneuver in which she must relive the terrifying events in order to spark her memory.

A patient's condition leads to a conversation about Alzheimer's disease between Maggie and Richard; Jackson and April try to return to normalcy; Arizona realizes that Callie is moving on; Meredith reveals her fears.

The stakes are life and death when Tommy is accused of murder and Megan has to put her personal doubt aside to try to prove his innocence.

Jane and Maura must conduct a secret investigation when a shooter begins to target marathon runners.

The Dubois family changes permanently when Allison and Joe start new careers that take them in different directions.

Grissom and his team look for a killer after the remains of a young boy who starved to death are found in a plastic container.