看点：四个初中好朋友承诺永远做最好的朋友，却在高中分道扬镳，一系列改变将影响她们的友情。 Freshman year of high school, Piper, Sophie, Isabella, and Honor made a pact to be best friends forever. To seal their bond, they buried a time capsule in the lake with a list of goals they wanted to achieve before graduation. However, as senior year approaches, their friendship has drastically altered. Piper has transformed into the class clown and party girl, constantly seeking the next thrill. Sophie, on the other hand, remains committed to her pledge to remain abstinent until marriage. The various paths they have chosen will test the strength of their once unbreakable friendship.