Do Your Best, Kakarrot! You Are No. 1!!
Goku pushes his body to its absolute limits, battling Majin Buu at maximum power in a fierce, back-and-forth exchange. Watching the high-stakes confrontation unfold from the sidelines, Vegeta reflects on his long history with his rival, re-evaluating their legendary relationship as he witnesses the full extent of Goku's strength.
Aired 10/05/2015EP 54 - Do Your Best, Kakarrot! You Are No. 1!!
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.