Ben 10 Omniverse: the unseen adventures. Fear itself

Ben 10 Omniverse: tua. Series One, episode One. By Pdfletcher.

Characters.

 * Ben Tennyson.
 * Gwen Tennyson.
 * Kevin Levin.
 * Officer Maulkin.

Aliens used.

 * Amphibian.
 * Wildmutt.
 * EchoEcho.

Villians.

 * Ultimate Kevin.
 * Insane Gwen.
 * Parasites.