Nick Wechsler

While Hal and Lois take a romantic break, Reese throws a party at home, but the delinquent friends of Francis gatecrash and hold the boys hostage.

Kevin takes the twins to the cabin in hopes of proving himself as a father.

Rebecca hosts a dinner party. Kevin tries to support those around him. Randall faces concerns about how his family is adjusting to their new home.

After the body of a young woman is found with multiple gunshot wounds, Intelligence identify links to other deaths and realise they are dealing with a serial killer. Lindsay finally meets her biological father.

The crushed body of a teenage girl is found in an abandoned building. Intelligence discover she ran away from a treatment centre. Voight sends Halstead undercover as a guard at the centre to find answers.

When a sex offender is found dead and mutilated, Intelligence look into a private police force that may be covering up illegal activities. Meanwhile Halstead runs a DNA check on Jimmy and discovers he is not Erin's father.