Ace meets a mysterious young man, Deuce, who saves his life when Ophiuchus Sam attempts to rob an interdimentional train. But Deuce is not who he appears, and Ace learns the true origins of his sword.

Now that Optimatus is free, he alongside General Deuce and Rupes Oberon plan to use Planet Blanc's wormhole generator to take over the universe. Planet Blanc is said to be at the center of the universe, and that every point in the universe can be instantly travled to with ease from it. The Royal Tweetums contacts the Loonatics for help. It turns out that Tweetums evaded capture. The Loonatics must find him before Optimatus does, but not without help from an old enemy.

After receiving a message containing clues on Tweetums' whereabouts, the Loonatics and Sylth Vester seek out where Tweetums is. Meanwhile, General Deuce and Optimatus begin their plans to conquer the universe.