Young police scientist Barry Allen is struck by lightning, miraculously surviving, he realizes that he has gained super-human speed. Inspired by the recently debuted superheroes, he designs a suit and calls himself Flash, after a famous speedster from the 40s. As he struggles to get used to his new powers, Flash frequently clashes with the Rogues, a team of criminals who were recently equipped with advanced technology by an unknown source.
Barry's friend and engineer Clyde Mardon is mysteriously killed and his creations are stolen, which causes his brother Mark to swear revenge, using the only invention that the attackers couldn’t find, an advanced staff that can affect the weather.
Barry and Iris investigate and discover that the technology used by the Rogues is connected to Russell Glosson, an elderly inventor, who killed Clyde in order to steal his technology.
It’s revealed that Glosson is the Turtle, an old enemy of the original Flash, and helped the Rogues out of disgust that someone has followed on his nemesis’ legacy. Turtle uses an advanced suit that can slow down reality around him, but is defeated by Flash and Mark Mardon. Mark brutally beats Turtle but is stopped by Flash.
In the aftermath, Flash settles in as Central City’s hero while Mark joins the Rogues with the alias Weather Wizard.
