Ben 10: Omniverse
Mud is Thicker Than Water
Duel of the Duplicates Episode 5
November 2, 2013 22m TV-Y7
Ben, Gwen and Cousin Lucy try to find out how Psyphon's thugs are getting Plumber technology. Gwen suspects that Lucy is the mole because of all her shape-shifting abilities, and her love of tricks when she was younger.
Cast of Mud is Thicker Than Water