Since their explosive breakout album, the Mars Volta have fearlessly redefined the progressive rock genre. But their success gave way to deep personal fissures that ended their partnership in 2013 and inflicted wounds that would take more than a decade to heal. Culled from hundreds of hours of footage filmed by Omar over the past 40 years, this documentary charts the duo’s intense and profound journey as they navigate success, addiction, tragedy, betrayal, forgiveness, and redemption.