On a roadtrip with his cousin Gwen and his Grandpa Max, Ben finds an alien watch, the Omnitrix, which allows him to transform into 10 different aliens. Once transformed, Ben takes on the alien's appearance and powers, while always remaining a ten year old boy. The result...the ultimate kid superhero!
Four Arms is armed for battle with his massive Omni-Kix Armor! His powerful armor-clad boxing gloves deliver intense blows and when a villain is just out of reach, Four Arms can send his fists flying through the air and... KABLAM! Bad guy down!