Jinpei and Ryu visit the Shirayuki orphanage where Jinpei grew up, in order to play with friends. The children beg them to take them to watch some kickboxing. At the same time, in a volcanic area, strange things are happening. Ken and the other two go to investigate, but don't find anything extraordinary.

After watching the fight, the children go to ask the winner, Galack X, for an autograph. They learn however that he was trained with deadly weapons in his boxing gloves. They are caught by the female assistant and taken away. Ryu, following Galack X by Jinpei's request, battles with Galack X, but gets hurt. He contacts Ken and the others.

Jinpei, following the children, sneaks into a building behind the orphanage. There's a Galactor base and the assistant is Katse in disguise. Katse intends to have the now inactive volcano erupt and burn the city. Jinpei's clackers hit the switch and the eruption begins. Katse escapes in a rocket.

With Ken and others, who had now arrived, they defeat Galack X and save the children. But the lava is flowing out of the mountain in direction of the city. Burning the orphanage, it continues its way. Despite his injuries, Ryu suddenly comes flying in the God Phoenix. They unite and destroy the mountain with a rocket, succeeding in damming up the lava. The city is saved, but the orphanage is completely burned. The Science Ninja Team starts to rebuild it, together with the children.