Tacoma FD's newest chief, Terry McConky, is under scrutiny by the city council to get serious about his station's ratings. Meanwhile, Terry's crew puts his job in jeopardy by engaging in a ridiculous competition for a super sawft prize.

Wolf Boykins returns to lead the fire station choir, the Ex-SING-guishers. Eddie teases Granny for joining the group but soon finds himself vying for a spot as the lead whistler. Lucy, meanwhile, convinces Chief to let her look for a more female-friendly uniform.

The crew hopes to return to their burnt-down station but must convince a reluctant Eddie to join them… And exorcise a few demons in the process.

Station 24 is picked to make public service announcements, forcing them to work with the buff and handsome C-Team and their new transfer Delilah. Terry buys a gas-guzzling truck and Eddie can't help but take him for a ride.

Andy and Ike’s misstep on a call to a Tacoma police officer’s house fans the flames of the FD’s long-standing feud with the PD. Chief tries to keep a lid on the dispute, but all goes awry as his crew wages a tit-for-tat war with the cops.

As Eddie prepares to become a father, the rest of the crew's wagering gets out of control, forcing Terry to ban all gambling from the firehouse. The crew finds creative ways to bet behind Chief's back, causing Lucy to fall into debt.

When a mysterious old trunk is found hidden in a wall at Station 24, Eddie discovers that its contents hold secrets that were better left buried.

Councilwoman Price tells Terry to find the author of an anonymous firefighter blog from the station and shut it down. With everyone a suspect, no one can be trusted. How quickly will they turn on each other? Who will crack? And Whodunnit?

Longing for a female friend, Lucy convinces Chief to transfer firefighter Delilah Dunn to the station while guys on the crew try to find a macho match to their energy. Meanwhile, Eddie takes Councilwoman Price for a walk on the wild side.

Ike's mean twin brother Mike pays him a visit and asks for a life-changing favor. Meanwhile, the crew takes DNA tests, Granny discovers his Jewish heritage and Terry is devastated to learn that Lucy's genes are more Penisi than McConky.

When Lucy's secret date with a Tacoma police officer ends in embarrassment, the firefighters and the local police struggle to manage the aftermath.

The Crew welcomes Mickleberry, a new probie, to the shift, but they quickly realize a funny name is not a good reason for picking a new Firefighter.

Ike’s dark past comes back to haunt him when the Crew learns he used to run with a gang on the tough streets of Tacoma’s Little Belgium.

Amidst some fun in the sun at Terry’s annual Summer Pool Party, the Crew tries to work up the courage to tell the Chief his Famous BBQ Chicken just isn’t that great.

The crew is assigned their first ever female firefighter, Lucy, sending the firehouse into a gender confused tailspin. When Chief puts the clamp on rookie hazing, the guys try to engage in their old traditions anyway only to find that Lucy is a force to be reckoned with.

It's a spooky evening for the crew when they have to answer a call at a haunted house. While they navigate the haunted halls looking for the source of the fire, each of them must confront their greatest fears.

The holiday season has arrived at the firehouse and everyone is feeling jolly... except for Eddie. In order to get good year-end reviews, Lucy, Andy, Ike, and Granny try their hardest to get him in the Christmas spirit.

The Tacoma FD's negligence during a firehouse school trip makes Councilwoman Price so angry that she orders the guys to complete a training recertification with an old nemesis who's just itching to fail them.

Andy's big welcome from a different team of firefighters has him questioning his place within his own crew. Meanwhile, Eddie spars with a new top chef at the station to win the annual pancake cook-off!

Eddie runs into his cradle-robbing first love and must decide whether to rekindle his romance with the sexy senior citizen. Then, Granny and Lucy compete to win the affections of an androgynous dispatcher and Terry discovers moisturizer.

When Councilwoman Price tries to take nudity out of the annual Firefighters' Beefcake Calendar, the crew must get creative to maintain the integrity of its sexy (and oily) tradition.

When Fire Commissioner Eddie Penisi, Sr. shows up, Eddie and Terry seek his approval while the "commish" drives them apart. The crew plays D&D for the acceptance of their own illustrious dungeon master.

Terry learns some sexy new dance moves to impress Vicky at the fireman's ball. Ike volunteers to be Andy's wingman, and Lucy discovers her date is more like his mother than she realized.

A flashback to how Terry and Vicky met and were set up by Eddie as a prank years ago. Terry, Eddie and Vicky all have very different memories of the event, but all involve Terry eating.

When Terry throws out his back, Eddie becomes the interim Chief, which creates tension over whose methods are best.