Somewhere in Tokyo, Shiba, an elderly policeman, is assigned to form a special unit together with a cutting-edge android, K. As the two attempt to put their differences aside, a much grander plot slowly unfolds, following their investigation into what seemed to be a string of unrelated murders.

Note: Released as a tie-in for the 1973 tokusatsu show Robotto Keiji, with the two running concurrently but differing in terms of plot.*