Kagaku ninja tai Gatchaman

A fishing-boat is in the vicinity of Ghost Island and becomes eyewitness to a big ray and cuttle-fish. Afterwards, it is swallowed by a huge waterspout and is shipwrecked. On Nambu's orders, Ken and Jun land on the island and start to investigate. As night falls, the two of them see how previously defeated Galactor mechas appear explode as they are swallowed by a waterspout. They are convinced that there has to be a mecha factory. They defeat Galactor members who have come searching for intruders and take their place. Then they sneak into the base. In the base, Doctor Ogawara and his assistant Nakamora are about to explain the new mecha Komaking to Katse. Ken tells Jun to contact the God Phoenix, then he gets into the mecha. But Jun follows him, sneaking in as well. The God Phoenix fights hard against the waterspout created by Komaking. But Ken and Jun destroy the power generator of the mecha and it starts to fall. Ken catches Katse in the command room and brings him back to the God Phoenix. Fulfilling a wish he has since a long time, Ken pulls off Katse's mask. But the face appearing beneath it is the one of Nakamora. Katse has already escaped. When Ken weeps tears of anger the words of his father seem to resound in his ear, encouraging him.