Unlike previous series, Omniverse is largely defined by its narrative arcs, each consisting of 10 episodes:
Led by the tyrannical , the Incurseans (a race of toad-like warriors) invade the galaxy. This arc sees Ben dealing with the political fallout of the invasion and the kidnapping of Princess Attea. It reintroduces classic characters and forces Ben to take on a leadership role on a galactic scale. ben 10: omniverse episodes