Ben, Gwen, and Max must stop an extraterrestrial who plans to open a gateway that leads to an alien invasion.

Ben and a mysterious girl from his past must prevent an alien threat from destroying the world.

After a battle with Dr. Animo in a power plant, Ben notices something strange is happening with the Omnitrix but doesn't tell anyone. Tetrax arrives and tells them the Omnitrix is broadcasting a self-destruct signal. Tetrax and Ben go to find the creator of the Omnitrix to fix it before it destroys itself and the universe along with it. Gwen stows away to help her cousin.

Based on the original animated series Ben 10. Ben becomes targeted by an evil Mechamorph Warrior, named "Retaliator," who mistakenly blames Ben for something he did not do and attempts to destroy all aliens.

A blast from Ben's past returns to do double the damage on Team Tennyson and planet Earth itself, forcing Ben to go interstellar to save the day. Based on the 2016 reboot.