A textbook rescue turns into anything but; Boden prepares to start a new family; Molly's II is unveiled; a misunderstanding sends a ripple through Casey and Dawson's relationship.
Dawson's off-book move during a call threatens her relationship with Casey.
Firehouse 51 scrambles to save lives during a helicopter disaster.
In part one of the crossover with Law & Order: SVU and Chicago P.D., Severide returns from Vegas with a huge surprise that sends ripples through Firehouse 51.
Herrmann pushes Dawson to the limit while Casey faces down his corrupt brother-in-law.
Severide confronts his demons in an unexpected way while Dawson and Mills struggle with their new roles.
Severide returns to Firehouse 51 still reeling from the loss of Shay.
In the Season 3 premiere, Firehouse 51 reels from the devastating loss of a teammate.
For the tough-minded leader of the Intelligence Unit, there's a gray area between right and wrong.
In the season finale, a boarding school fire leaves Severide shaken, and Boden's grand plans take a detour.
The firehouse pulls together to help Dawson retake the firefighter's exam.
In the first hour of a crossover event with Chicago P.D., the firehouse is tested like never before when a massive explosion sends Chicago into chaos.
Firehouse 51 struggles to cope after the tragic death of candidate Rebecca Jones.
Jones fights to stay on at 51 while Dawson and Shay take a girls' weekend to a remote cabin.
Are you Team Casey or Team Severide?
Old friends and enemies return to haunt Firehouse 51, for better and worse.
Christian Stolte talks about Mouch's budding relationship with Desk Sergeant Trudy Platt.
During a rescue, Mills passes out and needs to be rescued himself.
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?
Chicago Fire arrives on a scene to put out a stove fire, but find the person responsible in a bizarre location and position.
Director Sanford Bookstaver describes directing the spectacular fire truck crash in "Just Drive the Truck."
Lauren and Monica talk about how long it took to shoot "No Regrets".
A major explosion occurs at Chicago Medical, where Casey and Dawson are volunteering at a charity run.
Chief Boden bounces back from an earlier rejection and proposes to Donna from the heart.
Eigenberg discusses how Herrmann deals with being underestimated.
Lt. Matthew and Gabriella are ordered off of the roof but are forced to repel down the side of the building.
Charlie talks about how its like shooting a movie.
Casey races against a raging fire to save himself - and a rescued baby - from certain death.
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