Kagaku ninja tai Gatchaman

Suddenly, the islands in the South Pacific Ocean are surprised by strange weather. Tens of thousands of people freeze to death because of the wind, snow and icy cold. This is caused by Galactor using the Earth's magnetic field to manipulate the Van Allen belt. In the middle of a magnetic storm, Ryu is sent to do some solo investigation in his Horned Tank, but he is dragged along by the ocean currents and propelled onto the beach of a lone island. There he happens to meet an old man named Rokko who breeds sharks. Ryu learns from Rokko that there is a Galactor base operating an antimagnetic ray canon in the coral reef in the ocean in front of the island. Ken and the others hurry there and together with Ryu they attack the Galactor coral base. They leave Rokko behind who is dying because of the cold weather. But since Galactor is using a special magnetic field with only one pole, their ray cannon disables all the functions of the God Phoenix. However, a harpoon they received from Rokko saves them from this critical situation, since the harpoon is not affected by any magnetic field. The Science Ninja Team smashes the enemy base, but they cannot save one old man.