Go back to the very beginning of Barry Allen's heroic journey in The Flash: Year One!
Barry Allen feels helpless in his life in Central City. As a forensic scientist, he's always catching criminals after they've committed their crimes. All that changes one fateful night when Barry is struck by a bolt of lightning and doused in chemicals. When he wakes from a coma, he realizes he can run at incredible speeds.
Can Barry master these powers and be the hero his city needs...or will the powers burn through him? Collects The Flash #70-75.