Eternal summer follows lifelong friendship of quiet, A-student Jonathan and class rebel Shane. They first meet as kids, when their teacher pairs them together, hoping Jonathan academic aptitude will rub off on his classmate. Ten years later, Jonathan still excels at academics, and Shane still lacks school smarts--however he has grown into a hunky basketball star. As the two prepare to enter university, the new girl in school, Carrie, enters the pictures, taking an immediate liking to Jonathan, who doesn't returen her feelings, so her affections turn to Shane. Her influence in this newfound trio only serves to focus the boys' long dormant feelings for each other