<P> The Flash is an American action television series developed by Greg Berlanti , Andrew Kreisberg , and Geoff Johns , airing on The CW . It is based on the DC Comics character Barry Allen / Flash , a costumed crimefighter with the power to move at superhuman speeds . It is a spin - off from Arrow , existing in the same fictional universe . The series follows Barry Allen , portrayed by Grant Gustin , a crime scene investigator who gains superhuman speed , which he uses to fight criminals , including others who have also gained superhuman abilities . The Flash was renewed in March 2016 for a third season , which premiered on October 4 , 2016 . On January 8 , 2017 , The CW renewed the series for a fourth season , which premiered on October 10 , 2017 . As of December 5 , 2017 , 78 episodes of The Flash have aired . </P>
<P> The Flash is an American action television series developed by Greg Berlanti , Andrew Kreisberg , and Geoff Johns , airing on The CW . It is based on the DC Comics character Barry Allen / Flash , a costumed crimefighter with the power to move at superhuman speeds . It is a spin - off from Arrow , existing in the same fictional universe . The series follows Barry Allen , portrayed by Grant Gustin , a crime scene investigator who gains superhuman speed , which he uses to fight criminals , including others who have also gained superhuman abilities . The Flash was renewed in March 2016 for a third season , which premiered on October 4 , 2016 . On January 8 , 2017 , The CW renewed the series for a fourth season , which premiered on October 10 , 2017 . As of December 5 , 2017 , 78 episodes of The Flash have aired . </P>
what is the release date for flash season 4
what is the release date for flash season 4
January 8 , 2017
January 8 , 2017