The Negative 10 was a mercenary team of antagonists who attacked Max, Gwen, Ben and Cooper.

History of our Organisation:

After Driscoll was dismissed by the Plumbers because he was stealing technology, he became the Forever King. He then created a splinter group who wanted to take down the plumbers out of vengeance. Driscoll would later create the Negative 10, a group of villains who have crossed paths with Ben Tennyson, the wielder of the Omnitrix. However, it would later be revealed that Driscoll really wanted the sub-energy, a powerful source to power up his suit, and take over the entire world.

The Team would trick Ben and his family to meet them at Mount Rushmore, where Driscoll revealed the name of Negative 10. Driscoll then lets his allies initiate the attack against Ben, but they are thwarted until Cooper is commanded to attack the Tennysons. The Negative 10 are tricked by Ben and Gwen into fighting over who is the best, and then placed into a force field (excluding Driscoll). The team eventually disbanded, as Driscoll escaped after being defeated by Upchuck, and the others going there separate ways.

The Negative 10 appeared in the two-part episode, Ben 10 vs. the Negative 10. They were led by Driscoll, a former Plumber who was dismissed due to his evil actions and became the Forever King, leader of the Forever Knights.