A laboratory accident endows a police scientist with the ability to move at superhuman speed which he uses to battle a menacing gang as a superhero.

The corrupt District Attorney Thomas Castillo hires a private eye named Megan Lockhart to find out the Flash's identity. He then blackmails Barry to work for him, or he'll expose his secret.

Someone spreads graffiti, and messages asking to meet "Flash" at a church. Barry goes to the church. Shortly after that, he begins to experience black outs and memory losses.

Barry befriends an African American who was once a super hero that defeated a terrorist called the Ghost, who blackmailed the city through television sets. When the presumed dead criminal is defrosted, the Night Shade is back in business.

A jazz musician friend of Julio's is about to be executed. An hour before the execution, a friend calls and says he has evidence that could exonerate their friend. Before Barry can contact him, he disappears. They have less than an hour to save a condemned man.

Barry is having trouble sleeping. Tina tries to use bio-feedback to help him, but it back fires on Tina. She joins a gang, and she's able to hold Flash at bay with her knowledge of his strengths and weaknesses. Barry has got to find a way to save his friend.

Jay's killer, Nicholus Pike, is released from jail and blames the Flash for Jay's death. He sets the Flash up by using a heat seeking bomb on him, but something goes awry. Instead of killing the Flash, it sends him into the future where Pike is in charge and outlaws anyone from mentioning the Flash.

There's a new vigilante in town, the Deadly Nightshade, who fights crime by killing criminals. The Flash and the original Nightshade team up to take him down.

A small time crook gets a hold of a device that puts people to sleep. He goes on a spree while the people are unconscious. He has a plan to knock out the entire city, it's up to the Flash to stop him.

With the help of an insane admirer who wants to be his sidekick, the Trickster escapes from police custody and places the Flash under his mind control.