Kagaku ninja tai Gatchaman

In the country Doria, oil springs have been discovered. A battle has started between the King, keen on the mining rights, and the Prince, who's on the side of the poor, revolting people. It has become a civil war. Now there's also a never sleeping force, intent on making this into a world war. The King, in a disadvantageous situation in this war, asks the Science Ninja Team for help. The God Phoenix sneaks into the country in firebird mode. Ken contacts Prince Ali and convinces him to talk one more time with his father, the King. Together they go to the palace. But the King's answer is a volley of bullets, aimed at the prince and his companions. Ken stops the Prince who wants to attack the King. They both are dropped through a hole in the floor into a subterranean prison, where they find the skeleton of the true King. Ken tells the God Phoenix to come and get them, thus escaping. At the palace, people are gathering to demand the release of Prince Ali. The Mecha Moskon attacks them with bombs. Katse, disguised as the King, is chuckling while watching this. Ken appears before him and cuts the escape rope which Katse is holding. Katse falls into the city streets, which are wrapped in fire. Elsewhere, the Mecha's nature of following every move is uncovered and the God Phoenix is able to lure it into the oil field. The God Phoenix shoots it and it goes up in flames together with the oil field. The people of Dorian see the God Phoenix, coming out of the flames as firebird, and worshipping the Firebird God, they start to believe in the rebuilding of their country.