Greta Honold

Casey (Jesse Spencer) goes to drastic measures to help his friend Kannell (guest star Kamal Angelo Bolden). Lt. Severide (Taylor Kinney) helps an old widow come to terms with letting go, but realizes he may be the one needing help. Otis (Yuri Sadarov) and Cruz (Joe Minoso) deal with surprises when they find a new roommate to move in. Dawson (Monica Raymund) and Brett (Kara Killmer) get crafty to save a young girl.

Following the shocking events related to a fallen officer, Teresa and Jarek vow to bring whoever is responsible to justice. In the meantime, Alderman Gibbons pays a visit to the victim’s family to offer his condolences and plant a few seeds of betrayal, implicating members of the Chicago Police Department. As every officer in the city hits the streets to avenge this cop killer, Jarek and Caleb follow up on some of Liam’s leads, while Vonda and Isaac are promoted to the organized-crime task force.

The squad investigates the murder of a movie star who had been filming in the city; a young homeless man is found encased in ice in a shantytown.