In the future, Ben 10,000 and Kai Green (at this point in time, Kai Tennyson) are at Plumbers' Headquarters having a party for Grandpa Max because he is retiring from the Plumbers and Rook being promoted to be in charge of the Plumbers until Maltruant, Exo-Skull and Subdora secretly attacks Plumbers' Headquarters to get the Annihilaarg and the Dwarf Star for Maltruant to become more powerful. Ben 10,000 and Kai Tennyson both discover that their ally Chrono Spanner is actually their son, Kenneth Tennyson.