Prison Planet Saga
The
Prison Planet Saga is the third original saga in
Dragon Ball Heroes. It is set after the
Dark Empire Saga of
Dragon Ball Heroes and also the
"Future" Trunks Saga of
Dragon Ball Super.
n the PV, Future Trunks (from after the events of the
"Future" Trunks Saga), is imprisoned. Goku (from
Dragon Ball Super) battles Xeno Goku. Meanwhile Super Saiyan Blue Vegeta and Future Mai are also both engaged in combat.
Future Trunks and Fu clash blades
In the manga
Fu appears, saying it's time to begin the experiment. Cooler frees Future Trunks (from after the events of the "Future" Trunks Saga from prison). Super Saiyan Vegeta discovers an evil
ki while Super Saiyan Blue Goku fights Super Saiyan 4 Goku: Xeno. Future Mai tells Future Trunks to wait for her.
Goku, Future Trunks and Vegeta face their foes
In the trailer Future Trunks and Future Mai have returned to the present timeline in their time machine, Future Trunks trains with Goku and Vegeta on Whis' planet, while Future Mai has food with Beerus and Whis. Elsewhere Fu gathers the Dragon Balls and makes a wish, a mysterious figure with long hair and blank eyes appears and powers up. Super Saiyan Blue Goku and Super Saiyan 4 Goku: Xeno battle while Super Saiyan Future Trunks clashes with Fu, Cooler interrupts their battle and so Trunks joins back up with Goku and Vegeta, turning into
Super Saiyan Anger as he does so.