When Judy boards the train from Bunny Burrow to Zootopia to begin her life as the big city's first bunny cop, Stu and Bonnie's youngest daughter, Molly, hitches a ride atop the train, forcing the down-to-earth duo out of their comfort zone and into an action-packed rescue mission.

After being wrangled and arrested in a giant donut—compliments of Officer Judy Hopps—clever criminal weasel Duke reevaluates his life, pondering where he went wrong—in song. In a musical aptly staged in his own mind, Duke contemplates how to go from a small time crook to the Big Time!