Ravi comes up with a cure for the zombie plague, but warns Liv that it's in short supply. Meanwhile, Major refuses to tell Blaine where the stolen astronaut brains are, and Clive tries to locate Teresa's killer.moreless
Rebecca Hinton, the reporter that Major helped, turns up dead. Liv eats her brain to find out who killed her Rebecca and inherits her alcoholism, while trying to cope with Lowell's death. Meanwhile, Clive advises Major to get help.moreless
A missing pregnant girl reappears after eight months, and dies of exposure. The doctors save her child, and Liv takes on a strong maternal instinct after eating the girls' brains. Meanwhile, Major follows Julien and learns about his interest in brains.moreless
Captain Cold recruits a partner to take on Flash and dispose of the hero once and for all. However, when Barry chooses to focus on his rematch with Reverse-Flash, the villains take Caitlin hostage to force the speedster's hand. Meanwhile, Iris prepares to move out, and Cisco tries to redeem S.T.A.R. Lab's reputation.moreless
General Wade Eiling takes over the police investigation of a thief who uses explosives, and Barry soon discovers that the thief is a metahuman who detonates anything that she touches. Meanwhile, Joe asks Barry to convince Iris to stop writing her blog about the Streak.moreless
Bellamy and his crew search for Octavia. Meanwhile, Raven notices a connection between Finn and Clarke.
The victim: Emily Williams; the killer: Jeannine Boxton
Emily and Jeannine were best friends and, up until recently, Emily dated Jeannine's brother, Aiden. Six weeks ago, something happened in Emily's life that caused her to break up with Aiden and change her mind about a university track scholarship. As the team investigates, they discover that both families have their secrets.
Stephen feels uneasy about fellow ULTRA trainee, Hillary, who has her own secret agenda. After his mother insists the family go camping with Peter, Stephen asks John and Cara to ensure everything is okay with Astrid while he's gone.
While Holmes tries to make amends with Detective Bell, he and Watson look into the mafia's association with a body found in a barrel.
Nick becomes involved when Juliette witnesses a murder committed by a creature who is unable to maintain his human form. Meanwhile, Hank begins to notice a few things that don't add up.
Kate is ordered by Judge Nicastro to mediate an insurance dispute.
Carries loyalties are tested as she investigates a murder case involving her boyfriend's mob associates.
Kane and his team must deal with an Aryan Nation separatist community who;s involved in drug running. Meanwhile, a serial rapist case brings up bad memories for Juliet and could end her career.moreless
The Breakout Kings are assigned to track down a notorious hitman-for-hire who has escaped from prison and gone on a killing spree.
A siren casts a spell on men in a small Iowa town, driving them to kill their wives.