When Ami's buddy Yaniv comes to Miami with his Japanese apprentice Kosuke, to drop off Ami's bike, Ami and Yaniv decide to swap apprentices for the day, leaving Yoji to experience a new world of grease.
Ami et Yaniv, son ami fabricant de vélos, décident d’échanger leurs apprentis. Yoji se retrouve les mains dans le cambouis pendant qu’un jeune japonais le remplace.