The Ultimate Frontier

The Ultimate Frontier is the first chapter of Ben 10: Overdrive Frontier.

Major Events

 * Ben meets Maru.
 * The Omnitrix is later upgraded into a new version.
 * Ben, Maru, and Rook encounter Overlord Garr.
 * Flarefist and Hopshock make their first debuts.
 * Humongousaur, Gravattack, and Diamondhead is revealed to be in the Frontier Omnitrix.
 * Tyrannoid and Salachiller make their Negatrix debuts as well.
 * Ben faces off against Garr.

Characters

 * Ben Tennyson
 * Maru
 * Rook Blonko

Villians

 * Garr
 * Vilgax (shadow)

Omnitrix Alien debuts

 * Humongousaur (Frontier debut)
 * Flarefist (first appearance)
 * Gravattack (Frontier debut)
 * Diamondhead (Frontier debut)
 * Hopshock (first appearance)

Negatrix Alien debuts

 * Tyrannoid (first appearance)
 * Salachiller (first appearance)