The series was broadcast by TV Tokyo affiliates on the Monday 5:30PM time slot and aired weekly from April 7 to December 23, 1991, lasting 37 episodes.

In the near future, the world is filled with unprecedented murders, terrorist attacks, and cyber crimes that exceed the limits of what the police can expect.

Masanao Daigo of the Tokyo Metropolitan Police Department has been searching for the right people for the "Metal Project," a plan he has been developing for a long time.

Daigo is so impressed by the actions of Ken Kanzaki, a police detective, Ryō Aguri, an F1 racer, and Gō Gōda, a professional wrestler, who were seriously injured in an attempt to save him, that he reanimates them as cyborgs and gives them new bodies and missions as "Metal Jack," an armored police force, to reward their courage in the face of death.

Takara released a set of action figures based on the show under a line called the "Armored Police Series".

A CD single (Hold On), two albums (Just Dream On and PARTY JACK) and two drama CDs (Count Down and HARD PLAY) were released by King Records.