In the season finale, a boarding school fire leaves Severide shaken as Boden's grand plans take a detour.
The firehouse pulls together to help Dawson retake the firefighters' exam; the station welcomes a new squad member; Shay receives an uninvited guest; Boden makes a bold move.
A massive explosion sends Chicago into chaos - and 51 to the rescue.
Firehouse 51 struggles to cope after the tragic death of Rebecca Jones; Severide performs one final gesture for Bloom; Boden seeks to reconnect with Donna.
Jones fights to stay on at Firehouse 51 while Dawson and Shay take a girls' weekend at a remote cabin.
A father's heroic sacrifice affects the entire squad - and leads to an unexpected threat.
Keeler's disappearance ignites an investigation into everyone with a motive from Firehouse 51.
Severide and Chicago P.D. hunt for Katie while Dawson faces the final test of her training.
Firehouse 51 steps in when a blackout causes chaos during a frigid night in Chicago.
Casey continues to deny his lingering injuries; Shay receives stunning news about Darryl's suicide; Dawson struggles to keep a damning secret.
Dawson faces an uphill battle - and unlikely competition - as a new recruit at the academy. Meanwhile, Casey discovers a lingering injury and Mills receives life-changing news.
On the verge of closure, Firehouse 51 bands together in a fight to save the station.
Dawson and Casey's romance escalates while Shay hits rock bottom and goes MIA.
A drive-by shooting forces Cruz to make a big decision while Casey and Dawson struggle to keep their feelings at bay.
Firehouse 51 is thrust into the furnace with a train derailment.
Are you Team Casey or Team Severide?
The man behind Kelly Severide talks about the return of Chicago Fire.
A behind-the-scenes look at the minivan fire Casey and Dawson barely survived. Hosted by Jesse Spencer and Monica Raymund.
The actor chats up the Season 2 finale, Boden's big romance - and a true story about Jesse Spencer.
In a touching ceremony, Chief Boden and Donna get married at Firehouse 51.
While investigating a fire at an abandoned house, the squad stumbles upon a surprising discovery and stages a daring rescue to save one of their own.
Things heat up between Casey and Dawson during what seems to be a home-cooked dinner date. The question is, will they finally share a kiss?
Taylor Kinney discusses Severide's dramatic rescue in "Joyriding."
The actor chats about Mills' father and the future of Chicago crossovers.
Special effects coordinator Joe Millinac explains Chicago Fire's biggest mechanical gag to date - a six-foot story car drop!
Leaders lead from the front. Don't miss this inspirational mashup of Chicago Fire's many heroic moments!
With his family's restaurant up in flames, Mills risks his life - and those of others - to save an important item.
Co-creator Michael Brandt discusses the challenge of crashing a real train.
Learn about the strange phenomenon that hits Chicago every Tuesday night.
In a funny PSA, Joe Minoso, Yuri Sardarov and Christian Stolte present the do's and don'ts of bouncy castles.
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