妖魔王大战结束后3年，响与亚妮丝已移居美国。响在美国太空总署（NASA）工作，希望能够实现当年在成为超音战士之前的志愿 - 成为太空人，但亚妮丝就被冷落，决定接受邀请回国发展。 另一方面美姬和查克留在日本工作，当上了刑警，期间发现有人尝试再启动多年前的《BORGMAN计划》，查克邀请响一起调查，最后发现邀请亚妮丝回国的人正就是主谋。

It has been three years since the end of the series. Ryo works for NASA as an engineer on a large rocket project. Anise, fellow Borgman and lover, has been reduced to flipping burgers in a restaurant. So naturally, when she gets a letter offering her a professional job in a big, Japanese, high-tech project, she jumps at the chance. Ryo, however, is as indecisive as ever and so she leaves for Japan without him. Chuck Sweager, the third Borgman, is a police officer, as is his girlfriend Miki...