The thirteenth installment in the Metal Hero Series, Blue SWAT ran from January 30th 1994 to January 27th 1995 (51 episodes). Uniquely, Blue SWAT went for a much more realistic tone compared to other shows in the Metal Hero Series. This pleased older fans but children were not convinced. This resulted in a dramatic change of tone midway through the series in an attempt to win back younger viewers.
The plot focused on an Earth which was being torn apart by means of crime, pollution and war, aliens choose the time to invade, taking advantage of the lowering of everyone’s guard. The Japanese government establishes an elite police organization known as Blue SWAT to combat the aliens, known as the Space Mafia. The aliens attack by possessing humans to obtain their goals. When an alien possesses the chief of the Blue SWAT unit to infiltrate the organization, it manages to completely demolish their building of operations and murder all but three SWAT members: Show, Sara and Sig.
Managing to keep the suits and equipment assigned to them, the three form their own private detective-like agency called Blue Research to continue their mission of defeating the Space Mafia.
The Blue SWAT team later appeared for a special team-up in the final episodes of Juukou B-Fighter.