The world's raw material for sugar gets stolen by the Galactor mecha Ibukuron, and the world emergency sugar is getting very low.

Ryu and Jinpei rush out into the street to buy candies. Just then, they get the order from Nambu to move out in order to follow Ibukuron and find the secret base.

During the pursuit, the God Phoenix gets drawn toward the mecha by its strong magnetic force it uses to suck in the raw materials. Ken uses this force to sneak into the interior of the mecha, along with Joe and Ryu.

However, the interior turns out to be a sugar factory and the three team members get sucked into the production process. They almost fall into a huge cooking pot filled with seething raw material, but somehow manage to escape. But then they enter a centrifuge and are rendered completely helpless.

Meanwhile, Ibukuron has arrived at the base in a snow mountain and Jun and Jinpei sneak into its nuclear energy chamber. They turn off the power source, but get caught by the enemy. With the power turned off, Ken and the others can escape and arrive to rescue them. Just before escaping, Jun installs a time bomb and, as a result, the base disappears in the middle of an avalanche.

The Science Ninja Team distributes the sugar, which they won back from Ibukuron, in a park. The children are now happy again.