

A scientist builds a humanoid robot detective complete with human-like personality to fight a band of murdering robots created and led by her crazed brother.
A recently released convict decides to betray his two partners to the BAD Organization over one billion yen in loot. Can Robot Detective K stop Bad Organization's mysterious "Murder Salesman" before he finishes his mission?
Aired: 4/5/1973Kuroda tries to abscond with the billion yen, leaving Bad Organization in the lurch. BAD is not fooled, however, and sends its "Debt Collector". Detective K must face this new robotic threat, while trying to prove himself a capable cop to Detective Shiba.