Ben is driving a while after the final battle in Ultimate Alien and ends up in a portal to another world. Ben doesn't get the new Omnitrix due to Azimuth not finishing it yet. Ben now is on a new mission to help this world where he was killed by the Omnitrix as a 10 year old and his cousin getting it. Not a Ben X Gwen 10 Plumber Officer Benjamin Kirby Tennyson. Gwen 10: Alien Force

Gwen Tennsyon is hoping to survive the summer away, locked into a road trip with her grandpa max and cousin ben. However when an alien device does what it did, she begins to learn about the secrets that where hid.