Silver Heat Mask's scheme involved using his Silver Heat Power combined with a device to burn Tokyo in example of an ultimate scheme of the Black Cross Army to destroy the world. While the Gorengers pursue him due to his danger, he ends up capturing Yoko Kato, unknowing initially that she is EAGLE Agent 007 (who assists the Gorengers) as well as her little brother Taro. Upon his instructions, Yoko draws out the Gorengers where the Black Cross attack the team, hurting Akira in the process but allowing for her freedom while her brother remains a hostage and he continues to use the device to burn up Tokyo.