Nick Wechsler

The waitress is getting married, Dee is jealous that she's beating her to the altar, so she tries to derail the wedding.

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

The gang's high school reunion has come at last; each of them recalls the events that shaped them into the people they are now.

The gang hatches a plan to repair its tarnished reputation in the eyes of former high-school classmates.

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.

Evidence from the case of a young woman who was shot to death confirms the Chicago P.D. has a serial killer on its hands; Voight welcomes Kenny Rixton to the team when Ruzek takes another assignment.