This story is a sequel to Equestrian Omni-Hero: Destroy All Aliens
A new summer vacation has begun in Equestria as it comes with a new adventure. Now Helix Watch and his team, known as Alien Force, already for the next level as a Omni-Key unlocks a hidden power up within his Omnitrix. With this power up Helix now has new armor, new aliens, new villains, a new world that is literally below Equestria, and a new... Antitrix?!
Looks like Hero Time is about to get even wilder with an old bully from Helix's past around.