After an eventful trip to Italy, the cast returns to Seaside Heights, N.J., in the Season 5 premiere. It doesn't take long for old tensions to flare, as Mike once again gets in the middle of Snooki's relationship with Jionni.

A homesick Vinny considers leaving the shore house; Snooki and Jionni are fighting again.

The roommates adjust to life at the shore without Vinny; Mike addresses his own internal demons; Pauly celebrates his birthday.

Mike returns and learns about Danny's threat to find new tenants; the girls hire X-rated entertainment for Pauly and Mike's birthday party; the gang heads to Staten Island in hopes of persuading Vinny to come back to the shore.

The roommates celebrate Vinny's return; Mike goes out of his way to be nice but gets on the guys' nerves; Snooki deals with an uncomfortable condition.

Mike plots to bring down one of his roommates, and for once, it's someone other than Snooki. Meanwhile, J-Woww becomes worried when Roger won't return her calls.

Snooki and Deena clash with one of the roommates; Roger visits and gets upset with J-Woww for wearing a revealing outfit.

J-Woww confronts Pauly's stalker; Snooki's boyfriend denies her affections, prompting her to pursue Vinny; the roommates go fishing despite their fears of a shark attack.

The Unit returns from Miami, and Mike decides it's time to tell Snooki's boyfriend "the truth." Meanwhile, Deena, Pauly and Vinny struggle being the only single roommates in the house.

A huge fight breaks out after Mike tells Jionni he hooked up with Snooki; Deena faces a difficult truth about Joey; some of the roommates go camping while Pauly and Vinny pull off a big prank.

Another summer in Seaside Heights comes to a close as Hurricane Irene batters the East Coast in the Season 5 finale. As the gang prepares to leave, Mike continues to cause trouble by starting a rumor about Deena's sister, while Pauly and Vinny pull one more prank on the roommates.

The cast of 'Jersey Shore' is back together to dish about all the drama in Seaside Heights. The cast tell all, plus they will have a special announcement.Announcing Nicole 'Snooki' Polizzi's pregnancy.