The Great Kaioushin's Bright Idea! Son Goku is Revived!!
With Gohan facing an uphill battle against a newly powered-up threat, the strategy in the Sacred Realm of the Kais shifts toward immediate action. As time runs out for Earth's remaining defenders, Elder Kai offers a drastic solution that enables Goku to return to the mortal world and join the fight.
Aired 15/03/2015EP 46 - The Great Kaioushin's Bright Idea! Son Goku is Revived!!
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.