Kagaku ninja tai Gatchaman

Joe saves the son of Kaiser from an approaching car and becomes his friend. Together they play soccer while Kaiser draws Joe. But Kaiser is a former Galactor member and the only one who can handle a weapon Berg Katse has left behind. It's a weapon called Mechavolton which was built to destroy the greatest obstacle for Galactor's highflying ambitions, the Firebird. Kaiser, a.k.a. No. A-7, was thought to have died in the battle of Cross Karakorum and has led a peaceful life since then. But when Galactor threatens to kill his wife and son, he works together with them again. As a diversion, the Iron Bat attacks a city. The God Phoenix goes out to attack the Bat, but is wrapped in ice through a freezer gas. With the help of the Firebird they escape from the predicament for a short while and destroy the Iron Bat, but when Kaiser fires the Mechavolton, they are finally shot down. The Science Ninja Team escapes by a hair's breadth and invades the enemy base. But Kaiser blocks their way.