In the summer of 1968, Julie’s heart secretly belongs to her childhood best friend, Ethan who’s in a relationship with Maureen, the town beauty with a flashy red car. 'Three Musketeers' embark on their final adventure before parting ways, Julie grapples with her unspoken feelings, setting the stage for a heart-wrenching love triangle that will push the limits of their friendships as the summer's end draws near.