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The cast heads overseas to Florence, Italy, in the Season 4 opener, and the culture shock is nothing compared to their shocking new hookups.

Summer comes to an end in the Season 3 finale, which finds one couple reaching a crossroads in their relationship, while another couple makes theirs official.

Snooki and Vinny have a falling out; Mike continues to instigate drama between Sammi and Ronnie; Pauly and Vinny try to hook up with Deena’s friend, which doesn’t go over well with Deena.

Things heat up between J-Woww and Roger; Pauly and Vinny take a road trip to Staten Island; Mike clues Ronnie in on some of Sammi’s suspicious behavior.