Many days have passed. After completely stopping the invasion of a group of enemies "Faction" & following the saving the city Bellwood. Ben Tennyson finally turned 20 years old. And he decided to completely leave this city, to become a solo hero again, while Rook Blonko decided to stay in Bellwood, and continue to protect the city as an agent with Grandpa Max. However, upon arrival in the new city. His plans turn into disaster when Ben discovers an amulet of unknown origin in his room, he later finds out that this amulet was created by the villain Vilgax, who managed to survive and call for reinforcements from all the villains to completely invade the earth and take all the power of the Aliens Homeworlds. Ben will have to use on the new version of Omnitrix (Galacticmatrix) with new aliens again. He will have a long road beyond the planet earth and beyond the galaxy to defeat Vilgax, all the villains, and save everyone including Gwen, Kevin, Azmuth, Julie, Grandpa Max, Rook & others
