And So, After 10 Years... The First Tenkaichi Budokai in a Long Time!
Years after the battle with Majin Buu, a period of extended peace draws to a close as Earth's defenders reunite for the World Martial Arts Tournament. Intrigued by rumors of a mysterious young participant from a remote village, Goku enters the competition with high expectations. As the opening match begins, the true depth of this unknown fighter's hidden potential comes to light.
Aired 21/06/2015EP 60 - And So, After 10 Years... The First Tenkaichi Budokai in a Long Time!

Dragon Ball Z Kai: The Final Chapters
Since Cell's defeat Gohan has grown up and go to the university then she meets Videl which who has some adventures, then both and his new brother Goten are training for the new tournament, in which Goku came back from the dead for one day. In half of the tournament a misterious persons advice the group about the resurrection of the dangerous Majin Boo, but all plans fails and every one try new ways to stop The dangerous Majin Boo who gets stronger each time. Goku and his friends make everything for stopping them through fights.
(Source: Anime News Network, edited)
Note: Remastered version of the Majin Boo arc that adheres more to the manga's story.