About the Comic Edit
DBEX is a GT continuation that takes place a short while after the defeat of Omega Shenron.
It follows the "evil Goku" troupe, by having a malignant entity possess Goku while he is in a higher realm, effectively suppressing his consciousness and making him into a puppet.
The story never managed to progress beyond it's first arc, having been on hiatus for over a year while the creators focus on other projects.
A short while after the defeat of Omega Shenron, Gohan and Vegeta have made peace with the fact that they are the new defenders of Earth, Vegeta drags Goten with him in order to train him as well.
Meanwhile, Goku has ascended to a higher plane of reality, the "Divine World" and has gained the status of a god. After a year of settling into the role, he is besieged by a foreign presence in his mind that successfully suppresses his consciousness and uses his body to eliminate all living Namekians.
Eventually, his quest leads him to Earth where he is confronted by Gohan where the fight begins.