Ultraman Jack is featured in the series Return of Ultraman after Ultraseven and at a time of peace on Earth. But the monsters and aliens wake up, and Ultraman Jack must defend Earth again. His power comes from the Ultra Bracelet which was given to him by Ultraseven. Ultraman Jack takes the human form of Hideki Go, a member of the MAT—Monster Attack Team. His Special Move is the Spacium Beam, as powerful as the Spacium beam of the first Ultraman.