In a future where an adult Gwen Tennyson is president and the world is being taken ... a disillusioned Ben 10,000 is called out of retirement to recruit his 10-year-old version from the past.

All of Ben Tennyson's original alien transformations were cool, but some were much more useful than others, like Heatblast and Upgrade.

When Ben meets a young Generator Rex on the run from a hostile Providence, he must work through a series of misunderstandings, and defeat the dark wizard Hex in order to save the world.