It is one year after Professor Joe Parker's lab crew defeated the Beast in 71st century Wonderville. Now the crew is taking a day trip to 21st century San De Fredericko, Marifornia, to watch M Kool perform his rock song live on stage. During their day trip, the crew personally discovers that San De Fredericko is not a great place to be. Being run by two rival gangs, the Frednecks and the Parkerans, who walk the city bullying people, M Kool would do anything to put a stop to them. Can M Kool's song on stage finally put an end to the Frednecks and Parkerans, and make San De Fredericko a better place?