The Prius Boss is a sequel to the 2013 Micron Boss, which ends with the main characters of the previous film, Chicken, Baaya, and Bald, becoming friends. "Prius Boss" begins with Chicken and Baaya selling their micros and buying a Prius and taking a taxi. But a group of car thieves receives an order to steal 50 Priuses, and the adventure begins when those thieves steal Chicken and Baaya's Prius.