与妖者的战斗结束之后，几人过了一段平静的生活。在辽的16岁生日那一天，朋友们精心策划，准备给他最大的惊喜。但是，征士的意外缺席，以及电视机中播放的大洋彼岸美国的“连环杀人案”新闻，这不祥的消息给本应欢乐的生日宴蒙上了阴影。为寻找征士失踪的原因，斗士们远赴美国，在繁华的纽约曼哈顿街头，他们邂逅了一位美国女孩，露娜。
魔神坛斗士 外传 (季节 1)
Once Again! Samurai Troopers! (集 1)
播出日期: 1989-04-30
运行时间: 25 min
概述: Six months have passed since the end of the battle against the evil spirits. At Ryo's 16th birthday party, he and Nasty witness a news report about the Halo Armor committing random murders in New York. Sensing that something terrible is happening, Ryo heads to New York alone!
Save Your Friend! Samurai Heart! (集 2)
播出日期: 1989-06-01
运行时间: 24 min
概述: In order to rescue Seiji, Nasty, and Jun, who have been captured by a new enemy, the Shikaisen, Ryo, along with Luna, a local girl whose brother was killed in the incident, heads to the Japanese town where the Shikaisen awaits, along with Shin and Shu... But who is the enemy waiting for them there?! Now, the legend of the armor is reborn!
