Nick Wechsler

After Hal and Lois leave town for a getaway, "squatters" crash Reese's party, take over the house and refuse to leave.

An overweight, reclusive coed dies in a fraternity house fire, and Lilly discovers a photo of her being held down and forced to drink.

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.

Olinsky goes undercover as a hit man for hire after Lindsay is tipped off about a grieving father looking to avenge his daughter's death; when Ruzek returns from his undercover assignment, Voight puts him on patrol duty.

When the crushed body of a young teen who ran away from a treatment center for troubled girls is found in an abandoned building, Voight sends Halstead undercover as a guard to investigate the center from the inside.