"Alien Force" is an animated television series that is part of the larger Ben 10 franchise. It follows the adventures of a teenage Ben Tennyson, who has the ability to transform into various alien creatures using a device called the Omnitrix. In this series, Ben teams up with his cousin Gwen and their friend Kevin Levin to battle new threats and villains. The show is set five years after the original Ben 10 series and features a more mature Ben as he faces challenges that test his abilities and character. The series introduces new aliens and expands on the lore of the Ben 10 universe, appealing to both new viewers and long-time fans.