The movie begins on the last day of summer, and McKenzie’s (Mitchell) surf and sand life is about to be upturned when she departs for boarding school to fulfill her family’s dream to graduate from the elite institution. But when she and Brady (Lynch) find themselves literally transported into his favorite classic beach musical, set in the 1960s, about a rivalry between the surfers and bikers and a star-crossed teenage boy who likes a girl, he is ecstatic for endless summer while she is eager to get back home to keep her promise to her family about her schooling.
While they hatch a plan to get back to present day, the duo try to blend in and understand 1960s teenagers, but it’s not so easy when everyone around them spontaneously breaks into song and dance. And when they accidentally interfere with the plot of the movie and the lead characters, surf guy Tanner (Garrett Clayton) and biker girl Lela (Grace Phipps), fall for them, instead of each other, Brady and McKenzie fear their fate may be changed forever.
Teen Beach Musical is set to premiere this summer on Disney Channel.