公元2015年，未來世界的東京陷入一片機器人攻擊以及電腦犯罪等恐怖行動，正威脅著人民的安全，神祕的司令官～醍醐正尚為了要抵抗那些邪惡的機械犯罪，他耗費多年成立一個專案計畫，名為「Metal Project裝甲計畫」，並開始尋找適當人選。 有一天，知名國際企業「財前集團」正舉辦派對慶祝活動，一名財前集團的貴公子，財前純卻被邪惡組織Ido列為攻擊目標，並打算襲擊城市，用機器人犯罪征服世界，為了保護財前純而深受重傷，瀕臨死亡的三位刑警，在醍醐司令的協助之下，將三位刑警改造成人造人，並以「機甲警察金屬傑克」的身分，徹底保護城市與人民安全，將邪惡組織徹底粉碎，現在啟動警察變身，JACK ON!!
Key Animation (ep 7, 13, 20, 32, 36)
Key Animation (ep 30)
Key Animation (ep 25, 32)
Key Animation (eps 3, 7, 14, 21, 24, 31, 37)
Background Art
Storyboard (eps 24, 29, 34), Animation Director (eps 24, 29, 34)
Script
Storyboard (ep 5), Episode Director (eps 5, 10, 16, 19, 22, 25, 27, 32, 36)
Episode Director (ep 30), Animation Director (ep 30)
Storyboard (ep 2), Episode Director (ep 2)
Character Design, Animation Director
Storyboard (eps 32-33)
Key Animation (ep 32)
In-Between Animation (ep 2, 10, 15, 19, 22)
Episode Director (eps 15, 20)
Director (Chief Director: eps 17-37), Storyboard (eps 31, 37)
Animation Director (eps 7, 13, 17, 20, 25, 36)
Script (eps 5, 8, 12-13, 18, 27, 30, 32, 35)
Sound Effects
Background Art
Storyboard (ep 30)
Storyboard (ep 26)
Sound Manager
Director (eps 1-8), Storyboard (ep 1)
Key Animation (eps 7, 10, 13, 20, 25)
Setting (ep 1)
Animation Director (eps 23, 27, 33, 35)
Storyboard (ep 18), Episode Director (eps 4, 13, 31, 35)
1991年 季度排名 #1
1991年 動畫總排名 #31