After being struck by lightning, Barry Allen wakes up from his coma to discover he's been given the power of super speed, becoming the Flash, and fighting crime in Central City.
Barry Allen was struck by lightning and fell into a coma. When he awakens from it 9 months later, he meets Cisco Ramon, Harrison Wells, and Caitlin Snow, and later he realizes that he that he has powers and how it had been caused by the explosion of the particle accelerator.
Barry Allen is a forensic scientist and crime-scene investigator at The Central City Police Department with a reasonable happy life, despite the childhood trauma of a man in a bizarre red-and-yellow costume killing his mother and framing his father for it. All that changes when a massive particle accelerator created by visionary physicist Dr. Harrison Wells and his team at S.T.A.R Labs causes a malfunction creating a freak storm, killing many people and causing Barry to be struck by lightning in his lab. He wakes up after a coma nine months later. He and his new friends at S.T.A.R Labs discover that he has superhuman speed and can run on both land and water. He can move, think and react at light speeds. He can also vibrate so fast that he can pass through walls, travel through time and lend or borrow speed. He heals more quickly than an average human. Later, he learns that he is but one of the many affected by the incident, most of them who are using their powers for evil. Determined to make a difference, Barry dedicates his life to fighting such threats as The Flash.—Ron Shaju
After being struck by lightning and being affected by particle-accelerator explosion, Barry Allen wakes up with incredible speed. He calls himself The Flash. Now he is desperate to find the person that killed his mother when he was a child. Barry travels back in time on multiple occasions and screws everything up several times and ruins his friends' lives but he's a funny guy. He is also a superhero and has saved hundreds of people's lives so he's a good guy. The flash continually gets help from other superheroes like the arrow and Supergirl.
After being struck by lightning, Barry Allen (Grant Gustin) is reborn. Now having super speed, he has a new name. The Flash. With the help of his friends, he fights crime and find other metahumans like him. And he will do anything to stop them. He is the Flash.