Investigate the NFL’s denial that violent collisions are linked to long-term brain injuries.

FRONTLINE investigates how the NFL denied and worked to refute scientific evidence that violent collisions at the heart of the game are linked to long-term brain injuries. Drawn from a book by ESPN journalists Steve Fainaru and Mark Fainaru-Wada, the film tells the hidden story of the NFL’s concussion crisis.

Winner of a Peabody Award for the best in electronic media for 2013.