Robot Johnny 5 moves to the city to help his friend Ben Jahrvi with his toy manufacturing enterprise, only to be manipulated by criminals who want to use him for their own nefarious purposes.
U.S. Marshall John Kruger erases the identities of people enrolled in the Witness Protection Program. His current assignment is to protect Lee Cullen, who's uncovered evidence that the weapons manufacturer she works for has been selling to terrorist groups. When Kruger discovers that there's a corrupt agent within the program, he must guard his own life while trying to protect Lee's.
Mariachi plunges headfirst into the dark border underworld when he follows a trail of blood to the last of the infamous Mexican drug lords, Bucho, for an action-packed, bullet-riddled showdown. With the help of his best friend and a beautiful bookstore owner, the Mariachi tracks Bucho, takes on his army of desperados, and leaves a trail of blood of his own.
Doc McCoy is put in prison because his partners chickened out and flew off without him after exchanging a prisoner with a lot of money. Doc knows Jack Benyon, a rich "business"-man, is up to something big, so he tells his wife (Carol McCoy) to tell him that he's for sale if Benyon can get him out of prison. Benyon pulls some strings and Doc McCoy is released again. Unfortunately he has to cooperate with the same person that got him to prison.
After informing his CIA handlers that his next hit will be his last, John Hatch discovers that his target isn't a criminal at all. Refusing to take the woman out, Hatch instead takes it upon himself to protect her and expose the web of corruption at work.