Led by Capt. Matthew Casey (Jesse Spencer) and Lt. Kelly Severide (Taylor Kinney), the Truck and Rescue Squad companies work day in and day out beside each other. This tireless, never-give-up mindset brings them all closer together - the men and women of Firehouse 51 are more than co-workers, they're family.

The firehouse also includes Battalion Chief Wallace Boden (Eamonn Walker), who keeps his house running smoothly and his firefighters prepared to overcome all adversity. Paramedic Sylvie Brett (Kara Killmer) returns alongside seasoned veterans Christopher Herrmann (David Eigenberg) and Randy "Mouch" McHolland (Christian Stolte) as well as resourceful firefighters Stella Kidd (Miranda Rae Mayo) and Joe Cruz (Joe Minoso).

Completing the team are daredevil Blake Gallo (Alberto Rosende), talented and dedicated Darren Ritter (Daniel Kyri), and 51's newest addition, headstrong paramedic Violet Mikami (Hanako Greensmith).

The family inside Firehouse 51 knows no other way than to lay it all on the line for each other. Capt. Matthew Casey (Jesse Spencer) leads the Truck Company and brash Lt. Kelly Severide (Taylor Kinney) runs the Rescue Squad.

The firehouse also includes Battalion Chief Wallace Boden (Eamonn Walker), a fireman's fireman. As chief of 51, Boden keeps his house running smoothly and his firefighters prepared to overcome all adversity. Paramedic Sylvie Brett (Kara Killmer) returns alongside seasoned veterans Christopher Herrmann (David Eigenberg) and Randy "Mouch" McHolland (Christian Stolte), as well as resourceful firefighter Stella Kidd (Miranda Rae Mayo).

Completing the team is dependable squad member Joe Cruz (Joe Minoso), daredevil Blake Gallo (Alberto Rosende), engine newbie Darren Ritter (Daniel Kyri) and the newest addition, paramedic Gianna Mackey (Adriyan Rae)

The family inside Firehouse 51 knows no other way than to lay it all on the line for each other. Capt. Matthew Casey (Jesse Spencer) leads the Truck Company and brash Lt. Kelly Severide (Taylor Kinney) runs the Rescue Squad.

The firehouse also includes Battalion Chief Wallace Boden (Eamonn Walker), a fireman's fireman. As chief of 51, Boden keeps his house running smoothly and his firefighters prepared to overcome all adversity. Paramedic Sylvie Brett (Kara Killmer) returns alongside seasoned veteran Christopher Herrmann (David Eigenberg) and resourceful firefighter Stella Kidd (Miranda Rae Mayo).

Also returning for the eighth season are Randy "Mouch" McHolland (Christian Stolte), Joe Cruz (Joe Minoso) and Emily Foster (Annie Ilonzeh).

The family inside Firehouse 51 knows no other way than to lay it all on the line for each other. Captain Matthew Casey (Jesse Spencer) leads the Truck Company and brash Lt. Kelly Severide (Taylor Kinney) runs the Rescue Squad.

The firehouse also includes Battalion Chief Wallace Boden (Eamonn Walker), a fireman's fireman. As chief of 51, Boden keeps his house running smoothly and his firefighters prepared to overcome all adversity. Paramedic Sylvie Brett (Kara Killmer) returns alongside seasoned veteran Christopher Herrmann (David Eigenberg) and resourceful firefighter Stella Kidd (Miranda Rae Mayo). New to the firehouse is Emily Foster (Annie Ilonzeh), who is intelligent, easygoing and teams with Brett.

From renowned Emmy Award-winning executive producer Dick Wolf ("Law & Order" brand) and co-creator Derek Haas, the writer behind "3:10 to Yuma," comes season six of the high-octane drama "Chicago Fire," an edge-of-your-seat view into the lives of everyday heroes committed to one of America's noblest professions. The firefighters, rescue squad, and paramedics of Chicago Firehouse 51 risk their lives week in and week out to save and protect the citizens of their incredible city.

This is an extended family and everyone inside Firehouse 51 knows no other way than to lay it all on the line for each other. Lt. Matthew Casey (Jesse Spencer) leads the Truck Company and brash Lt. Kelly Severide (Taylor Kinney) runs the Rescue Squad.

The firehouse also includes Battalion Chief Wallace Boden (Eamonn Walker), a fireman's fireman. As chief of 51, Boden keeps his house running smoothly and his firefighters prepared to overcome all adversity. Gabriela Dawson (Monica Raymund) returns alongside Paramedic Sylvie Brett (Kara Killmer), seasoned veteran Christopher Herrmann (David Eigenberg) and resourceful firefighter Stella Kidd (Miranda Rae Mayo).

Also returning for the sixth season are Randy "Mouch" McHolland (Christian Stolte), Joe Cruz (Joe Minoso) and Brian "Otis" Zvonecek (Yuri Sardarov).

From renowned Emmy Award-winning Executive Producer Dick Wolf ("Law & Order" brand) and creators Derek Haas and Michael Brandt, the writing team behind "3:10 to Yuma," comes Season 5 of the high-octane drama "Chicago Fire," an edge-of-your-seat view into the lives of everyday heroes committed to one of America's noblest professions. The firefighters, Rescue Squad and paramedics of Chicago Firehouse 51 risk their lives week in and week out to save and protect the citizens of their incredible city.

This is an extended family and everyone inside Firehouse 51 knows no other way than to lay it all on the line for each other. Lt. Matthew Casey (Jesse Spencer) leads the Truck company and brash Lt. Kelly Severide (Taylor Kinney) runs the Rescue Squad.

The firehouse also includes Battalion Chief Wallace Boden (Eamonn Walker), a fireman's fireman. As chief of 51, Boden keeps his house running smoothly and his firefighters prepared to overcome all adversity. Gabriela Dawson (Monica Raymund) returns alongside paramedic Sylvie Brett (Kara Killmer), seasoned veteran Christopher Herrmann (David Eigenberg) and resourceful firefighter Stella Kidd (Miranda Rae Mayo).

Also returning for the fifth season are Randy "Mouch" McHolland (Christian Stolte), Joe Cruz (Joe Minoso) and Brian "Otis" Zvonecek (Yuri Sardarov).

"Chicago Fire" - an edge-of-your-seat view into the lives of everyday heroes committed to one of America's noblest professions. For the firefighters, Rescue Squad and paramedics of Chicago Firehouse 51, no occupation is more stressful or dangerous, yet so rewarding and exhilarating. These courageous men and women are among the elite who forge headfirst into danger when everyone else is running the other way and whose actions make the difference between life and death.

The pressure to perform on such a high level has a way of taking a personal toll, sometimes putting team members from the Truck and the specially trained Rescue Squad at odds with each other. Despite any differences, this is an extended family, and when it's "go time," everyone inside Firehouse 51 knows no other way than to lay it all on the line for each other. Lt. Matthew Casey (Jesse Spencer) leads the Truck company, and brash Lt. Kelly Severide (Taylor Kinney) runs the Rescue Squad.

The firehouse also includes Battalion Chief Wallace Boden (Eamonn Walker), a fireman's fireman who is tasked with keeping everything in line and running smoothly between Truck and Squad. Paramedic turned tough-as-nails firefighter Gabriela Dawson (Monica Raymund) returns alongside paramedic Sylvie Brett (Kara Killmer) and seasoned veteran Christopher Herrmann (David Eigenberg). Dora Madison also joins the cast as spunky, spirited paramedic Jessica "Chili" Chilton.

Also returning for the fourth season are Randy "Mouch" McHolland (Christian Stolte), Joe Cruz (Joe Minoso) and Brian "Otis" Zvonecek (Yuri Sardarov). Jimmy Borrelli (Steven R. McQueen) is the newest addition to Firehouse 51.

Though many of the firefighters still grieve over the loss of one of their own in a brutal explosion, they are faced with new challenges: a determined arsonist, the complications of staff romance and tension inside the house with shocking results.

A riveting look into the everyday heroics and private lives of the firefighters, rescue squad and paramedics of Firehouse 51, where plunging into roaring infernos and putting out personal fires is just another day on the job. But there are more than just flames to battle when the station lands on the short list for a shutdown, sending the team on a rescue mission they're not equipped to handle.

An up-close and personal view into the lives of everyday heroes, watch the adventures of the men and women of Chicago Firehouse 51, the courageous firefighters, rescue squad, and paramedics whose actions make the difference between life and death.