Board Thread:Questions and Answers/@comment-11255996-20130810134404/@comment-25396661-20140917220938

Ah, you mean Ben. Well the whole point of alien force was to have ben lead a team of aliens (the plumber helpers) to fight an alien invasion. Hence the name Alien Force. So Ben has been the leader. Max still continued to train the plumber helpers, and in omniverse he is the plumbers cook and mentor to Ben, but he isn't the official leader anymore.