Snooki's friend Ryder stops by for a visit and lucky enough its her birthday. Snooki and Jenni return to Jersey with Jenni's dogs who are welcomed at the house by everyone. Sammi and Ronnie's relationship continues to strain and after a heated argument after the club, Ronnie throws all her stuff around the room and tells her to leave. Ronnie starts to second guess himself. Jenni comforts him and they bury the hatchet from Miami. Mike brings home a girl, but her friend is wandering down the house so Vinny pulls out the Grenade Whistle to warn Mike. Vinnys girl's family comes to pick her up which make Vinny uncomfortable. Jenni gives Ronnie a hug which is caught by Sammi. Sammi loses it and thinks she is all alone in the shore house. As a response to the newfound friendship between Ronnie and Jenni, she punches Ronnie in the face. She quickly plans to leave but with the help of everyone she apoligizes to Ronnie and stays. Jenni and Roger continue to date and also Deena and Dean, but Mike finds out a dirty secret which ends their relationship. Also Snooki and Vinny buy a stripper pole for the house and Sammi and Jenni make up and become friends again.