After graduating from college, the former members of the all-girls a cappella group, The Bellas, find themselves struggling with the realities of adult life and the challenges that come with it. Each grappling with their own version of post-college disillusionment, they feel disconnected from the joy and camaraderie they experienced while performing together. When the opportunity to reunite arises in the form of an international USO tour, the girls leap at the chance to sing again, eager to slip back into their old routines for one last hurrah.

The group quickly discovers that the world of performance has changed dramatically since their last competition. Now on foreign soil, they are pitted against bands that play their own instruments as well as sing. Additionally, these new rivals also produce original songs, not just covers. The Bellas must adjust to these new dynamics while dealing with their own internal conflicts and the sense that this tour might be their final chance to make their mark. As they journey through this adventure, the bonds of friendship are tested, and each member is forced to find their individual path to moving forward while still holding on to the legacy they've built together.