The gang reunites in Las Vegas to meet Ronnie's baby, but no one knows what to expect when Ronnie's relationship drama gets blasted all over social media.

Ronnie is pushed to the edge when the truth about his family situation comes to light, the gang wins big at the casinos, and Jen turns up unexpectedly at the suite.

Ronnie worries about his baby's well-being when he gets news about Jen, Vinny misses Pauly D while he's out of town, and Angelina shocks the roommates when she pays a visit.

Angelina aggressively tries to smooth things over with Jenni, and Vinny misses Pauly so much that he carries around a cardboard cutout of him.

As their Las Vegas vacation nears the end, Nicole's very extra friend Joey comes for a visit, Jenni leaves the trip early, and Pauly plans a surprise.

Nicole and Jenni try to mend their friendship, the guys go baby shopping and revisit the Ronnie and Jen warzone, and Vinny and Pauly make a serious bro-mmitment.

Jenni and Angelina finally bury the hatchet, and the gang takes a nostalgia-filled trip back to Seaside Heights.

Back where it all started, the roommates enjoy a night back in their original seaside house, but things get messy when Vinny and Angelina air out old dirty laundry.

Ronnie makes a surprise appearance at Deena's gender reveal party, and later, everyone heads to Atlantic City for Pauly's DJ gig.

In Atlantic City, the roommates do their best to support Ronnie and Jen’s relationship while celebrating at Pauly’s birthday gig, and Angelina continues to flirt with Vinny.

As the roommates head back to the Jersey shore, Ronnie and Nicole cut loose before everyone else arrives, and Angelina gets flirty with Vinny after a fight with her fiance.

Jenni joins Mike for his motivational speech at a rehab facility, Pauly arrives for family dinner, and Angelina pushes Vinny too far in their love-hate relationship.

Mike competes in a burger-eating contest, Nicole takes a pregnancy test, and history repeats itself when Ronnie gets into hot water (literally) with another woman.

The roommates come up with an elaborate scheme to kidnap Deena and bring her to the house, while newly single Ronnie takes time to himself to come to terms with his breakup.

The roommates throw a party with Slip 'N Slides, bounce castles and more, and a night out heats up when a stranger pushes Ronnie to his breaking point.

A call from home leaves Ronnie worried and everyone else skeptical, and the roommates help Deena honor her father's memory and fight cancer with a fundraiser.

As Mike prepares for both a jail sentencing and his wedding, the ladies take his fiancee Lauren to a wedding dress fitting, and Jenni shuts down discussions about her divorce.

Ronnie claims to have gotten into an altercation in a parking lot, and the roommates gather as Mike receives his criminal sentencing for tax evasion.

Mike gets sentenced to eight months in prison for tax evasion, Ronnie raises eyebrows with a story about getting mugged, and the gang heads to a dude ranch.

During a trip to upstate New York, Angelina and Deena clash over beds, Ronnie reveals that his girlfriend Jen might be pregnant, and Jenni refuses to discuss her divorce.

The roommates throw Mike a bachelor party, but the guys and ladies have very different kinds of entertainment in mind, and Ronnie wants Jenni to open up about her divorce.

Ronnie falls into a funk as his relationship drama looms over the group, the guys choreograph a dance for Mike's wedding, and Nicole prepares for The Snooki Shop's opening.

Deena gets emotional at her baby shower, Mike and Lauren host their wedding rehearsal dinner, and Ronnie's personal woes create tension with the rest of the group.

Ahead of Mike and Lauren's wedding, Ronnie opens up to Vinny and Pauly about his relationship problems, and Jenni and Nicole help their daughters prepare for flower girl duty.

It's time for Mike and Lauren's wedding, but all eyes are on Ronnie's unpredictable girlfriend Jen when she makes the surprising decision to attend.

At Mike and Lauren's wedding reception, the guys prepare for their dance routine, Uncle Nino sends Jenn a message, and Pauly D enlists Rob Base to surprise the newlyweds.