Infini-T Force The Movie

After the war, Gatchaman, Polymar, Tekkaman, and Casshern went back to the world where they used to be. However in the parallel universe, where human is still in the danger under Galactor, and Dr. Nambu is the enemy... Four superhero join forces for a new fight. This time, Joe Asakura also returns. Is he a friend or a foe?