This episode's plot is very similar to that of Magnum Force (1973), in which a group of motorcycle cops take the law into their own hands and begin executing criminals, and also attempt to recruit Dirty Harry to their cause.
This is one of several episodes that does not end on a freeze frame.
In the opening sequence, Tubbs is not behind the wheel of his usual light blue Coupe de Ville, but rather a black Chevrolet Impala convertible. The reason for this is not explained and is not known if the viewer is supposed to notice it's a different car.