After two movies of true friendship and relentless flirting, Poppy (Anna Kendrick) and Branch (Justin Timberlake) are now officially, finally, a couple (#broppy)! As they grow closer, Poppy discovers that Branch has a secret past. He was once part of her favorite boyband phenomenon, BroZone, with his four brothers: Floyd (Troye Sivan), John Dory (Eric Andre), Spruce (Daveed Diggs) and Clay (Kid Cudi). BroZone disbanded when Branch was still a baby, as did the family, and Branch hasn't seen his brothers since. But when Branch's bro Floyd is kidnapped for his amazing musical talents by a pair of nefarious pop-star villains-Velvet (Amy Schumer) & Veneer (Andrew Rannells)-Branch and Poppy must embark on a harrowing and emotional journey to reunite the other brothers and rescue Floyd from a fate even worse than pop-culture obscurity.