When a Black oil well worker is killed by a band of California neo-Nazis, his gun-wielding grandmother busts out of her retirement home to avenge him.

A female team of government agents, under the guise of owners of a popular worldwide franchise of aerobic centers, matches wits with a group of criminals who have kidnapped a top defense specialist and his ailing son, intending to sell him to the highest bidder.

A sophisticated computer named IFR (the film's title is its nickname) supervises an organization dedicated to correcting wrongs against the defenseless and assigns human operatives to track down the evildoers and bring them to justice non-violently.