Caroline Neff

Two teenage girls have gone missing and the team know the clock is ticking to find them. Halstead (Jesse Lee Soffer), Antonio (Jon Seda) and Lindsay (Sophia Bush) investigate a tenement which gives them a much needed lead. Voight (Jason Beghe) brings the father of one of the girls to district in order to get some honest answers. Meanwhile, Platt (Amy Morton) puts Roman (Brian Geraghty) and Burgess (Marina Squerciati) on gun buy-back duty where they ask questions when they aren’t supposed to. Patrick Flueger, Elias Koteas and LaRoyce Hawkins also star. Charlie Barnett, Stella Maeve and Michael James Reed guest star.

While trying to help out Olive (guest star Caroline Neff) Voight (Jason Beghe) is attacked and taken. When he doesn’t show for work the team gets suspicious and begin investigating. Ruzek (Patrick Flueger) and Atwater (LaRoyce Hawkins) prove they do belong on the team when they demonstrate smarts and savvy tracking down a lead that will hopefully bring them to Voight. Meanwhile Burgess (Marina Squerciati) and Roman (Brian Geraghty) are trying to track down a girl who has run off with a police badge. Jon Seda, Jesse Lee Soffer, Sophia Bush, Elias Koteas and Amy Morton also star.

After surviving a hit against him, Voight (Jason Beghe) is convinced the culprit is a criminal he and Olinksy (Elias Koteas) once put away and is determined to catch him before he injures anyone else. At District, Atwater (LaRoyce Hawkins) accidentally spills information about Ruzek's (Patrick John Flueger) past which unsettles Burgess (Marina Squerciati) and Platt (Amy Morton) assigns Burgess and Roman (Brian Geraghty) a high society dognapping case.

While Platt (Amy Morton) tries to manage a chaotic desk area, a man struggling to get her attention takes a drastic action and demands that the unit find his missing daughter. At the same time, Commander Fischer (guest star Kevin J. O'Connor) informs Voight (Jason Beghe) that Bunny (guest star Markie Post) is bringing up new accusations on a case from his past. Lindsay (Sophia Bush) urges her mother to fix the situation. Meanwhile, Antonio (Jon Seda) is shocked to learn a secret Olinksy (Elias Koteas) has been keeping.

Intelligence investigates a gruesome case. Upon further examination, it appears the victim was wearing a CPD issued wire at the time of his death. Meanwhile, Burgess (Marina Squerciati) meets her new partner, Julie Tay (guest star Li Jun Li), who came from one of the worst assignments in the city. Together they respond to their first call, and Tay shares details of her past. Additionally, Commander Crowley (guest star Barbara Eve Harris) confronts Lindsay (Sophia Bush) about why she and Voight (Jason Beghe) were at that location on the night that Intelligence pursued Justin's killer.