Still feeling like the outcast, Snookie tells the others that she's leaving the Shore. And the roommates' first night out at the club gets flirty, proving that the boyfriends back home might, in fact, have something to worry about. And what started with Mike and Sammy turns into a love triangle that threatens to divide the house.

Jenni plans a surprise birthday party for Roger that goes south. Deena auditions Danny to be a meatball. The roommates finds themselves in the middle of a big brawl at the club and one of them gets caught in the melee.

The boys visit Vinny's family in Sicily, while the girls head to Tuscany for a wine tour. Later, Snooki learns the truth about her and Vinny's hookup, and she decides to come clean to Jionni.

Summer at the Jersey Shore kicks off when eight soon-to-be roommates move into their summer share. Romance heats up between Sammy and Mike, but all might be lost when the guys invite three random girls to join them in the hot tub. Meanwhile, Snookie comes on way too strong, and finds herself the outcast. She can only hope that first impressions won't be lasting impressions.

Mike has trouble accepting the fact that Sammi chose Ronnie over him. Angelina decides she's too good to work at the Shore Store and Danny fires her, which means she's no longer allowed at the house and has to leave the show. And Jenni's boyfriend comes for a visit but she waits before telling him about kissing Pauly.

The roommates say good-bye to the Jersey Shore as Season 1 comes to a close.

Sammi tries to figure out what Ronnie really did at the club the night before, but no one is saying. And when Angelina interrupts Pauly's game, we see a whole new side of the usually calm Pauly D.

The housemates pack up their hair extensions and Shore Store T-shirts and jet off to Italy for a European adventure. But, the culture shock that awaits them is nothing compared to their shocking adventure.

Deena copes with being away from her boyfriend; Snooki makes a shocking announcement.

Jenni fears that her relationship with Roger is in jeopardy; Mike has second thoughts about his relationship with Paula.

After a night at the clubs, and "beating the beat", Pauly and Mike have to juggle multiple groups of girls. Pauly takes a grenade for The Situation. Snooki's mother comes in for a visit, and an emotional Snooki shows her "true colors" And later that night mayhem breaks out when a fight erupts at a bar, and one of the housemates goes down.

With the support from most of her housemates, Snooki recovers from the punch. Ronnie's family comes for a visit and Sammi does her best to make a good first impression. J-WOWW gets tired of all the haters at the club and gets in a fight. Mike, Pauly and Vinny continue their schemes to hook-up with as many girls as possible, but Vinny may have crossed a line when he takes the boss' girl home

When Mike invites girls back to the house, the situation gets out of control, and Snooki gets into her second fight of the summer. Meanwhile Ronnie gets into a brawl of his own, leaving Sammi questioning their relationship

The summer's winding down but the drama doesn't stop. Pauly's got a stalker and a fight lands another roommate in jail.

The cast heads to Miami in the season 2 opener, and the drama quickly heats up when Angelina crashes the party. Meanwhile, Ronnie and Sammi, find themselves in an awkward situation after their recent break-up.

The ladies feel guilty about keeping Sammi in the dark about Ronnie's bad behavior, so they decide to write an "anonymous" letter to her, revealing the entire truth.

The roommates hold auditions for a temporary party pal for Deena; Mike reveals he used to be a stripper.

Sammi finds the "anonymous" letter from the girls and once again decides she's done with Ronnie. Meanwhile, Mike, Vinny and Pauly try to juggle four girls in one night.

Mike gets on everyone's last nerve after his obnoxious antics get them all kicked out of a club. Even Pauly is frustrated after Mike proves twice that he's a failure as a wingman.

The roommates say goodbye to Miami and head home in the Season 2 finale.

After Sammi leaves the house, Ronnie is an emotional wreck. With the girls taking Sammi's side and the guys not knowing how to cheer him up, Ronnie feels like he has no friends left in the house. Meanwhile, The Situation tries to hook up with Pauly D's ex-girlfriend.

Snooki is devastated over her big fight with Jionni, and decides to take a break from the relationship. Mike thinks it's finally his chance to win her over, but it's someone else who ends up comforting her. Meanwhile, Deena has a pregnancy scare.

Snooki moves out of the shore house to be on her own and Deena struggles without her meatball. Mike deals with the downside of his recovery after receiving treatment from a doctor.

The roommates head to Atlantic City where fun turn to fury when Mike manages to antagonize both Snooki and J-WOWW. And one roommate reveals that she used to have an eating disorder.

Angelina swallows her pride and apologizes to the girls. Back at the house, The Situation, Vinny and Pauly D have a close encounter with grenades in the hot tub, while Ronnie continues to creep behind Sammi's back.