The gang’s back for a very special summer at the Hills—the camp’s 50th anniversary! Wiener is especially excited to be back, because his little brother Max is finally coming to camp. Wiener can’t wait to show Max the ropes (and show Max what a cool big brother he is), but there’s a snag: as the smallest and youngest in his cabin, Wiener gets teased a lot, and it doesn’t take Max long to realize Wiener might not be the Camp Legend he made himself out to be.
 
Meanwhile, inspired by a big change at home, Missi is determined this summer to be 100 percent true to herself—no more pretending to like celebrity teens just to fit in! But when she catches the eye of a suave exchange student, she starts to wonder whether she was better off playing it cool.