Beware The Beast from Below

Beware The Beast from Below is the thirdy-first and fifth episode of Ben 10: Ultimate Alien season 2.

Air Date
March 18, 2011

Plot
Mariella returns home to find that Starro has taken control of her people. And Ben, Cooper and the gang will have to save her and the Atlanteans.

Characters

 * Ben Tennyson
 * Gwen Tennyson
 * Kevin Levin
 * Alan Albright
 * Cooper Daniels (Main Character in this Episode)
 * Helen Wheels
 * Manny Armstrong
 * Pierce
 * Kai Green
 * Julie Yamamoto
 * Elena Validus
 * Mariella

Villains

 * Starro

Aliens used

 * Ripjaws