What is flash rebirth?

Flash Rebirth is a six-issue comic book limited series which was published by DC Comics from April to October 2009. The series was written by Geoff Johns and illustrated by Ethan Van Sciver. It is a part of the larger DC Universe and serves as a relaunch of the character of the Flash, particularly Barry Allen, who had been dead since the mid-1980s.

The series follows the return of Barry Allen as the Flash, who was resurrected during the events of Final Crisis. However, upon his return, Barry discovers that the Speed Force, the source of his powers, is unstable, and several other speedsters have gone missing.

The Flash Rebirth series explores the relationships between the various speedsters in the DC Universe, including Jay Garrick, Wally West, and Bart Allen. The story also introduces new characters and villains, including the Reverse-Flash, who is revealed to be responsible for destabilizing the Speed Force.

Flash Rebirth received positive reviews from critics and fans. It was considered a successful relaunch of the Flash character and paved the way for several subsequent ongoing series, including The Flash by Francis Manapul and Brian Buccellato.