Somewhere, a small spaceship was wandering space, carrying with it a large asteroid. This asteroid contained a metal known as "Ninja Super Steel," and the spaceship was owned by an asteroid collector and bounty hunter named Sledge, who had recently gotten the asteroid from Madame Odius, a former servant of Galavanax and the new manager of Galaxy Warriors.

Another villain was travelling through space in a silver, smaller spaceship. For some reason, what this guy used to want was the Midoninger Shuriken, and he tried to manipulate Galaxy Warriors into teaming up with him once. But now, his archenemy had gotten stronger, and he wanted more than just the Midoninger Shuriken. He wanted all the Nin Shurikens now. But as soon as this guy saw Sledge's ship, he knew there could be something valuable in the asteroid. This guy's name was Anti-Kuroninja.

Anti-Kuroninja entered Sledge's ship, before being surrounded by Sledge and some of his soldiers. Sledge asked Anti-Kuroninja what he was doing on his ship. Anti-Kuroninja said that he just wanted whatever was on the asteroid. Sledge then said that the asteroid didn't have anything anymore, and someone took everything from the asteroid. Anti-Kuroninja then realized what was going on. He said that he would be right back, and left the spaceship, trying to think of a plan to make himself more powerful.

Meanwhile, on Earth, the Ninningers were fighting against a robot sent by Anti-Kuroninja to take their Nin Shurikens. This robot looked like a silver armoured cyclops that could fire a laser from its eye. Momoninger charged at the robot, but failed. The robot had very tough armour. It then began firing more lasers at Momoninger. Momoninger was trapped now, since the robot was in front of her and there was a large wall behind her. The robot began to fire its eye laser, and there was nowhere for Momoninger to run.

From far away, someone noticed that Momoninger was being attacked by Anti-Kuroninja's robot. He needed to do something, so he rushed towards the wall and pushed Momoninger away from the eye laser, getting himself shot by the laser instead. The person who tried to save Momoninger went by the name of Kuroninja (クロニンジャ).

In space, Anti-Kuroninja returned with a metal briefcase. He told Sledge that the Ninja Steel Rangers had ninja power stars made from Super Ninja Steel. Sledge was about to send one of his prisoners to earth to get them, but then Anti-Kuroninja offered to get those 5 ninja power stars by giving Sledge something. This small object was very colourful and almost shaped like a battery. It was an energem. Even though Sledge didn't know where Anti-Kuroninja got it, he still wanted it. Anti-Kuroninja would give Sledge the energem if he got Anti-Kuroninja the Ninja Power Stars.