Ōban Star-Racers - Season 1 Episode 25 Unlikely Alliances
Overview: Canaletto is free and determined to regain his lost power. The remaining racers join forces in order to stop the powerful being from achieving his goal. However, Canaletto will not go down so easily and unleashes his dark minions to destroy them. The fate of the galaxy hangs in the balance and one racer makes the ultimate sacrifice to ensure victory.