As the team gathers for a Friendsgiving celebration at Dean’s, a violent windstorm touches down in Seattle. As the storm picks up speed, creating dangerous fire conditions, the crew must put the festivities on hold and report for duty, leaving some of them in a life-threatening situation.

Just when Ryan agrees to talk it out with his dad, Greg Tanner makes an unexpected visit to Station 19, leaving Ryan and others confused. In an effort to connect with his crew, Captain Sullivan enlists the help of an unlikely source for some bonding tips.

Captain Sullivan continues his efforts to bring together the fire and police departments by hosting a training seminar that does not go as planned. Meanwhile, Ben and Miranda have an honest conversation about their marriage, leading Miranda to make a tough decision about their future.

Everyone is less than enthusiastic when Sullivan assigns each member of the crew a specialty skill to learn. During a house call, Ryan is caught off guard when he comes face-to-face with someone from his past; and Sullivan, Andy and Maya handle a structure fire in a derelict building.

When Station 19 receives a call from concerned neighbors regarding a resident in their apartment building, the team heads out to investigate. When they arrive to evaluate the scene, they’re shocked by what they find inside. Meanwhile, in an effort to create a solid working relationship between the fire and police departments, Ryan takes an unlikely member of the team on a ride-along.

It’s a life-and-death situation when a young boy falls into water pipes beneath the city of Seattle. With the clock ticking, the firefighters of Station 19 jump into action to save his life.

Lives hang in the balance as the members of Station 19 continue to fight a raging inferno inside a skyscraper. Meanwhile, Pruitt’s health is in grave danger at Grey Sloan; and a seasoned firefighter with a mysterious past arrives at Station 19, leaving everyone to wonder what the future holds.

Ben reaches a new milestone as a rookie and, as is tradition, receives something from the crew. Chief Ripley holds final interviews for the role of captain but is interrupted when the team is called to a massive skyscraper fire, causing several lives to hang in the balance.

In the final days before the Station 19 captaincy is announced, Pruitt warns Andy not to be disappointed with the outcome. Meanwhile, Ben gets upset with Pruitt for having told Bailey the dangers of firefighting; and the team gets trapped inside the garage of a burning house, putting several lives at risk.

Ripley interviews each member of the Station 19 crew to determine whether Andy or Jack should be given the role of captain. Meanwhile, a mom’s day out on a party bus takes a turn for the worst; and Captain Pruitt continues his treatment.

Ryan tags along to a disaster drill training at Station 19 where he and Jack get competitive. Captain Pruitt’s health weakens and Andy is sticking by his side. Meanwhile, both the firehouse crew and police department respond to a strip mall fire, forcing Jack and Ryan to work together.

Andy, Jack and 18 other candidates take the captaincy drill test, gunning for one spot as captain of Station 19. Meanwhile, Travis is serving as acting captain while Andy and Jack are away for the day; and Ben confronts Vic about her fears.

Miranda Bailey visits Ben at work, meeting his new co-workers for the first time. While most of the team responds to a motor vehicle accident involving an electrical danger, Andy and Maya are paired up to go on their first stakeout.

As if being co-captains weren’t hard enough, Andy and Jack find themselves in disagreement over spending decisions at the station. Meanwhile, the firefighters respond to a structure fire at a brand-new bed-and-breakfast; and Ryan calls Maya when he finds her brother in some trouble.

Upon the arrival of Batallion Chief Frankel, Jack begins his first shift as co-captain and continues to butt heads with Andy on leadership styles. Captain Pruitt has a difficult time following doctor’s orders and winds up back at the station to take on administrative duties. Meanwhile, the rest of the team at Station 19 responds to an attic fire at JJ’s apartment building and a call to a pool house party.

With the absence of Captain Pruitt, Andy and Jack try to navigate how to work together, and a car accident on a rural road puts both the victims and the crew’s lives at risk.

When the team responds to an apartment fire, Captain Pruitt takes a hit, the future of the station’s leadership is in jeopardy and firefighter Andy Herrera is forced to step up. Meanwhile, new recruit Ben Warren is trading in the scalpel for a fresh start as a firefighter, but it hasn’t been easy.

It’s clap-back season when the roomies stand up to someone who harasses them at the bar.

The Guidos are missing their meatball, Deena, so they decide to kidnap her; Ronnie invites Jewish Barbie to stay the night in his room.

Angelina and Vinny try to co-exist; Deena might not be the only meatball pregnant; it’s déjà vu when Ronnie takes a dip in the hot tub with Angelina’s friend.

Snooki spirals, Mike inspires, and Angelina and Vinny’s contentious relationship reaches the point of no return.

The guidos set their sights on the shore for one more epic vacation before summer ends; Angelina has her sights set on Vinny; Snooki’s ready to party like it’s 2009.

The arrival of Ronnie’s baby mama, Jen, has the roomies on high alert as they try to celebrate Pauly’s birthday in Atlantic City; the Staten Island love story takes a weird turn.

Deena finds out the gender of her little meatball; Ronnie make a surprise visit; things get interesting when the guidos brings their significant others to Atlantic City to watch DJ Pauly D spin.

Back in Seaside, things get messy between Vinny and Angelina; the guidos enjoy a night in their old home.

With Vegas in the rear view, the guidos take it back to 2009 with a trip to Seaside where it all began.