Ep 8. Rules of Engagement

In Ben 10: Omniverse season 3 episode 8, titled "Rules of Engagement," Ben and Rook are on a mission to retrieve a dangerous weapon from an alien planet. Along the way, they encounter an old enemy, Khyber, who is also after the weapon.

As they navigate through the planet's dangerous terrain, Ben and Rook stumble upon a group of aliens who are participating in a deadly gladiatorial battle. The rules of engagement are brutal, with the last alien standing being declared the winner.

Ben and Rook decide to intervene and put an end to the bloody spectacle. They team up with some of the aliens and devise a plan to take down the reigning champion and put a stop to the unfair rules of engagement.

Meanwhile, Khyber has his own plan to obtain the weapon, which involves using his loyal pet, Zed, to take down Ben and Rook. As the two sides clash in an epic battle, Ben must find a way to overcome both Khyber and the dangerous weapon in order to save the planet and its inhabitants.

With plenty of action, suspense, and unexpected twists, "Rules of Engagement" is a thrilling episode that will have viewers on the edge of their seats until the very end.