Fun-loving 10-year-old Ben Tennyson is back in this reboot of the popular animated series that originally aired from 2005-2008. He sets out on a cross-country adventure with Grandpa Max and cousin Gwen during the kids' summer vacation. Things take an exciting turn when Ben discovers the Omnitrix, a watch that transforms him into 10 heroic aliens. That opens up to him a new world full of extraterrestrial superpowers.