Master Roshi takes Goku and Krillin to begin their martial arts training on a jungle island. Krillin cheats to beat Goku in the heated rivalry and wins, but soon has to pay a heavy price for his actions. 

Goku and Krillin's training continues as they till the ground with their bare hands, dodge a swarm of angry bees, and swim with sharks. Can Goku and Krillin survive the training to prepare for the World Martial Arts Tournament?