
Dragon Ball Z Kai
In the seven years since Cell's defeat, life on Earth has returned to normal. Gohan has grown up and is now in high school. One day, everything changes with the arrival of a new World Martial Arts Tournament, which marks Goku's return from the Other World to reunite with his family and friends. But behind the celebration, the wizard Babidi appears in search of resurrecting the ancient demon Majin Boo, in order to complete his father's plans for universal domination.
Now 16 years old, Gohan embarks on his first day of high school. But blending in is almost impossible for a Saiyan, and it gets even tougher when a celebrity classmate gets suspicious of a certain blond man thwarting criminals around town.
Gohan asks Bulma to make him a disguise so that he can continue to fight crime in the city without being recognized. Wearing his new outfit, the defender of justice makes his grand debut in the city by helping Videl thwart a gang of criminals.
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 regimens 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.
While Gohan and Videl wait to take their preliminaries, Goku, Vegeta, and the others go to spectate the junior division, where Goten and Trunks effortlessly progress through each round until they face each other in the final round. The battle gets more intense. Goten and Trunks surprise the audience with advanced techniques. The fight between Goten and Trunks continues.
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.
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 Babidi uses magic to give his opponent the upper hand.