Random Portal

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