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.
Sammi tries to figure out what Ronnie really did at the club the night before, but no one is saying. When Angelina interrupts Pauly's game, we see a whole new side of the usually calm Pauly D.
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.
Sammi and Ronnie's relationship is strained further, and the other girls come up with a plan to let Sammi know the truth about what Ronnie is doing behind her back.
Sammi finds the 'anonymous' letter. The MVP boys try to cope with handling four girls in one night.
The anonymous letter causes tension between the girls culminating in a full-blown cat fight. Snooki finds out something about Vinny.
When a fight breaks out on the Shore, friends need to reevaluate their friendships and see which side they are going to be on. Tension builds when the true author of "the letter" comes forward and relationships start. One including that is so bizarre that everyone in the household is shocked that it ever happened.
The aftermath of Vinny and Angelina "Smushing" and everyone is calling her names. She doesn't care. Meanwhile, Vinny's mom and Uncle Nino visit and the whole house are happy with a real Italian dinner. However, peace doesn't last long when someone tells a certain secret to someone.
Things go bad for Angelina when the house learns that she slept with Jose after smushing Vinny. Angelina gets too close to the guy Snooki hooked up with. But it's the last straw when Mike discovers more unpleasantness in the bathroom.
The Situation reunites with his Canadian hottie which provides entertainment for the whole house. And Angelina tells her roommates how she really feels about them. This finally pushes things over the edge and sends Snooki into a frenzy.
Vinny decides between two sets of girls. Meanwhile, now that Angelina is gone, Snooki thinks it's time that she and J-WOWW bury the hatchet with Sammi. But Snooki's happiness is short-lived as Mike becomes increasingly hostile with her.
Mike gets on everyone's last nerve after his obnoxious antics get them all kicked out of the 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.
The cast reunites to talk about everything that happened in Miami.