The Tennyson Trio

The Tennyson Trio is a series about Ben, Gwen, and Grandpa Max. Instead of one Omnitrix coming down to earth, 3 of them did, so all 3 of them have their own Omnitrix. Ben have the Ultimatrix from Ben 10: Ultimate Alien, Gwen has the Omnitrix from the original series, and Grandpa Max has the Omnitrix from Ben 10: Alien Force.