Two sisters on the cusp of adulthood experience stress about throwing a going away party.

Two sisters on the cusp of adulthood, Elle (Aly Michalka) and Joy (A.J. Michalka), spend a final week before embarking on their next music tour visiting friends and preparing for the going away party they intend to host. Their apprehensions about throwing the party are universally validated when their divorced mother and father, as well as both of their ex-girlfriends, converge on the party, leaving tragedy in the wake of what they had envisioned as a unifying celebration. In the aftermath of this fateful night, Elle and Joy are left with the sobering yet liberating truth that they can only rely on each other.