Three years after the events in the previous film, the girls Bellas have graduated and have come to take jobs that I hate. Desperate to meet once to sing, Beca (Anna Kendrick), Fat Amy (Rebel Wilson), Chloe (Brittany Snow), Aubrey (Anna Camp), Lilly (Hana Mae Lee), Stacie (Alexis Knapp) Jessica (Kelley Jakle) and Ashley (Shelley Regner) are delighted to learn that Emily (Hailee Steinfeld), the last year student at Barden and leader Barden Bellas, asked to meet for an event.
When they get to the meeting they realize that the idea was not to sing, but to watch Emily and the other girls singing. Later, they get together at a bar of disappointment, and Emily apologizes for tricking them, believing that this was the only way to make them reunite. Suddenly, Aubrey comes up with the idea of participating in a competition and if they win it they will have the chance to sing in the opening of DJ Khaled’s concert.
Almost all the girls accept with delight, only Stacie makes an exception, she being pregnant in eight months and unable to accompany them. The group then goes to the venue of the competition and finds out that those who are competitors will also use tools, unlike them. When the Evermoist, led by Calamity (Ruby Rose), starts to make fun of them, the contestants are challenged by girls in a duel.