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

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.

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

Snooki clashes with Jionni and Vinny mulls his options.

Watch Jersey Shore Season 5 Episode 2 One Man Down online for free in full streaming video.

After an eventful trip overseas, the cast returns to Seaside Heights, N.J., in the Season 5 premiere.

Watch Jersey Shore Season 5 Episode 1 Hurricane Situation online for free in full streaming video.

The gang gets ready to say good-bye to Italy and head back to Seaside Heights in the Season 4 finale, but tensions between Mike and the rest of the roommates leave him doubtful that he’ll be joining them back at the Jersey Shore.

Watch Jersey Shore Season 4 Episode 12 Ciao, Italia online for free in full streaming video.

Deena continues to pursue Pauly. Later, she and Snooki get an icy reception an a nightclub. Meanwhile, Mike is back to stirring up drama, prompting the whole house to turn on him.

Watch Jersey Shore Season 4 Episode 11 Damage Is Done online for free in full streaming video.