Doug James

As District 21 is struggling to come to terms with the loss of one of the team they are forced to put their personal feelings aside when a café is bombed. The unit has several suspects and only one good eye-witness, who happens to be a minor. Halstead (Jesse Lee Soffer) pulls some strings to convince the mom to let him question Isabella (guest star Haley Seda) on what she saw. Atwater (LaRoyce Hawkins) finds himself in hot water when he makes a crucial mistake. Thanks to the tech savvy Mouse (guest star Samuel Hunt) the team is able to gain important intel that could help solve the case. Meanwhile Voight (Jason Beghe) helps Platt (Amy Morton) when she comes up against several roadblocks in an attempt to get a memorial stone for their fallen member. Also starring Jon Seda, Sophia Bush, Patrick Flueger, Elias Koteas, Marina Squerciati and Brian Geraghty. Joe Minoso, Markie Post and Kevin J. O'Connor guest star.

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.

With the escape in motion, Michael, Lincoln and the inmates take flight outside the prison walls, risking life and limb to evade capture. Warden Pope and Captain Bellick embark on a relentless pursuit to capture the escapees; the Vice President fears she will lose her command as well as her life; and Veronica tracks down the most significant piece of evidence to prove Lincoln’s innocence.

After the discovery of a serious medical condition, Mayor Tom Kane must set things in motion for the upcoming gubernatorial primary while attempting to reconnect with his distant wife and estranged daughter.

As Zajac's campaign gains momentum, Kane has problems adjusting to his new medical reality. An embarrassing media storm catches Governor Cullen off guard while Miller stumbles upon a story that seeps much deeper than he imagined.