While rescuing his old playmate from a greedy circus manager, the Great Saiyaman accidentally reveals his true identity to Videl. The price for her silence is Gohan's entrance into the upcoming World Martial Arts Tournament.
Gohan teaches Goten and Videl how to fly. Goku continues his training in Otherworld while Piccolo and Vegeta prepare themselves to face him in the tournament. Vegeta is stunned to learn that young Trunks and Goten can already turn Super Saiyan.
Gohan and the gang knuckle down on their individual training regiments in preparation for the World Martial Arts Tournament. When the day arrives, everyone gathers on the tournament grounds, where a father and son meet for the first time.
As the crowd enjoys the tournament's opening ceremonies, a preliminary round determines the final 16 adult fighters who will compete in the ring. Meanwhile, the first round of the junior-division competition is about to begin!
The junior division of the World Martial Arts Tournament begins, but it's no match for the likes of Trunks and Goten.
The battle between Trunks and Goten escalates as the two ramp up their attacks in front of a bewildered audience. The one who emerges victor is given a chance to fight Mr. Satan, but the former World Champion knows he hardly stands a chance.
Mr. Satan plays off his defeat at the hands of the Junior Division Champion. While Goku and the gang have an all-out feast, Trunks and Goten plan to get into the Adult Division drawing. A mysterious stranger approaches Goku, keen to fight him.
The adult division rounds finally begin! Piccolo must put his skills to the test against a mysterious opponent—but not before Krillin steps into the ring.
Spopovitch continues his savage assault on Videl who refuses to admit defeat.
Goku returns with the senzu beans for Videl. Gohan begins his match with Kibito, but gets more than he bargained for when Spopovitch and his partner intervene.
Goku and the others join the Supreme Kai in his search for Yamu and Spopovitch. As they travel, Shin explains what the devious duo were after and warns them of an ancient evil known as Majin Buu.
The evil wizard Babidi gives his henchmen a rough homecoming before turning on our heroes. Was this their plan all along?
To find Babidi, Goku and the others will have to fight their way through various opponents waiting on his ship. Vegeta steps up to handle the first stage, but Babadi uses magic to give his opponent the upper hand.