After going on a road trip post-graduation, Elle still hasn’t made her mind up about whether to go to Berkeley or Harvard – although Noah is already planning to get an apartment off-campus for the two of them.
When Noah and Lee’s parents announce they’re selling their beach house where they all spent their childhoods, Elle, Noah, Lee and Lee’s girlfriend Rachel (Meganne Young) offer to spend the summer there to help out with the sale.
Lee starts to plan how he can spend time with Rachel, who’s going to a different college, while Elle is suddenly faced with a deadline by Berkeley. She chooses to go to Harvard with Noah which annoys Lee, but Elle promises to make it up to him by spending the summer doing their beach bucket list of various activities.
Noah’s friend Chloe (Maisie Richardson-Sellers) – who Elle thought Noah was having an affair within the sequel – arrives at the beach house to make things more complicated, and they all come to a head when the group does a live-action Mario Kart. Noah and Marco clash, leading to Noah calling Elle “embarrassing” for not realizing Marco is still into her.
Encouraged by Chloe to talk to Elle, Noah quickly makes up with Elle though and the couple promise to “fight” for each other. Marco isn’t giving up though and shows up to the Fourth of July party where he again clashes with Noah and punches him, but Noah refuses to retaliate.