Guest Appearances

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

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

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

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

When a high-powered attorney accuses a city councilman of sexual harassment after a female coworker claims she was asked for sexual favours in exchange for being a partner at their firm, investigators find themselves in an unexpected circumstance.

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 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.

Returning from a business trip to Hawaii, Joe gets in touch with Allison to let her know when he'll arrive, but never makes it. Seven years in the future, Allison helps prosecute a major drug dealer as a successful assistant district attorney.

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

A shortage of blood in the ER during a winter storm leads to a difficult decision. Dr Greene and Dr Del Amico attempt to save a security guard that was shot on the job.

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.

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.

Zelena and Arthur cross paths with Merida, who is attempting to settle a debt; flashbacks reveal Merida's combat training.

When a teenage boy murders a fellow foster home resident, his lawyer asks for a not-guilty judgement based on a genetic abnormality, arguing that he is genetically inclined to violence.

Bobby defends a sex worker accused of murder; Ellenor defends an addict in need of a break; Rebecca handles a divorce case.

Carter supporters arrive to march through Modesto, but are met with contempt; Barb wishes to organise her own march and realises her racist ideals; Tony is welcomed to juvenile detention as a hero.

A video of Tony beating up his sister's attacker sends him back to juvenile detention; Mark's fiancée, Richelle, has a tense meeting with Barb; Aubry is pressured by her family to turn against Carter.

The detectives don't believe that the shooting of a cop with an active nightlife is as random as he claims; Rodriguez uses old connections to get a confession from a suspect.

The hunt is on for a woman that disappeared without anybody really noticing she was gone; a man holds out hope that Jack can locate his long-missing son.

Nick immerses himself in the world of illegal drugs when he defends a mentally challenged man accused of killing a well-known drug dealer.