Ben acquires another new Omnitrix that allows him to gain access to a new set of alien forms along with all the forms he has assumed prior. After Gwen goes away to college with Kevin accompanying her, Ben pairs up with Rook Blonko, a plumber from the planet Revonnah. He is targeted by an intergalactic huntsman named Khyber, who made a copy of the Omnitrix, the Nemetrix, with the help of mad scientist Dr. Psychobos. Both of them are working with an enemy from Ben's past, a mutated Galvanic Mechamorph named Malware. Ben later contends with the Incurseans, Albedo, Zs'Skayr, Dr. Psychobos, Charmcaster, the Plumber's Black-Ops Unit (called the "Rooters"), his alternate dimension self (the warlord, Mad Ben), and a Time War with Maltruant.