Ben 10: Another Beginning

Ben 10: Another Beginning is a series by BTF3, set directly after the Original Series in an entirely new continuity, and before Ben 10: Second Summer.

Synopsis
Starting directly after the Original Series ended, Another Beginning describes Ben's first school year after getting the Omnitrix.

Main

 * Ben Tennyson
 * Gwen Tennyson
 * Max Tennyson

Villains

 * Dr. Animo
 * Steamsmith

Episodes
See here

Aliens
See here