Summer discovers the truth about Seth's pot smoking, while Sandy and Matt encounter an obstacle with their hospital project. Meanwhile, Kirsten and Julie take their match ...

Julie tries to make up for forgetting Kaitlyn's fourteenth birthday by throwing her a party. Marissa and Kaitlyn butt heads over Johnny. Seth begins to spiral after being ...

Trouble brews for the gang when Marissa's younger sister, Kaitlin Cooper (whom is even more devious and amoral then Julie), arrives in Newport for a visit from her Montec ...

Ryan, Seth, and Summer plot to get Marissa back into Harbor School so they can be all together for the rest of the senior year. Johnny asks Marissa to attend a social fun ...

Ryan, Marissa, Seth, and Summer try to raise money for Johnny's knee surgery by throwing Ryan a Bar Mitzvah as part of Seth annual Chrismukkah celebration. Ryan is glad t ...

Marissa cares for an injured Johnny. But could they be getting too close? Ryan and Matt pull an all-nighter to prepare for a big meeting, but their night takes a turn. Se ...

It's time to start college applications: Ryan can't decide where he wants to go, Sandy is pushing his alma mater on Seth, and Summer is worried about being on the opposit ...

Charlotte and Julie throw a faux-benefit with an unknowing Kirsten. Taylor's meddling causes a rift between Seth and Summer. Sandy struggles with his new responsibilities ...

Taylor plans a Saturday night lock-in for the senior class, but not everyone is game. Seth helps Taylor in a time of need, but his kind gesture may have ramifications for ...

Summer decides to bring the curtain down on a certain student-teacher affair, and gets help from Seth and Sandy. Ryan has a personal crisis after overhearing devastating ...

Marissa struggles with attending new public high school Newport Union, and her new friends, Johnny; his girlfriend Cassey; and their nerd friend Chili, all of whom make R ...

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