Natsuki Subaru, an ordinary high school student, is on his way home from the convenience store when he finds himself transported to another world. As he’s lost and confused in a new world where he doesn’t even know left from right, the only person to reach out to him was …

Five years later, 15-year-old Ben Tennyson chooses to once again put on the Omnitrix and discovers that it has recalibrated and can now transform him into 10 brand new aliens. Joined by his super-powered cousin Gwen Tennyson and his equally powerful former enemy Kevin Levin, Ben is on a mission …