Big wave surfing gets its origin story here, starting with Greg Noll and the small crew who paddled out at Waimea Bay in the 1950s when nobody else would go near it. Director Stacy Peralta traces the sport's evolution through Jeff Clark, who surfed the notoriously dangerous Mavericks break near Half Moon Bay alone for fifteen years before anyone believed him about its size, and into the tow-in era pioneered by Laird Hamilton and his crew on Maui. The centerpiece is Hamilton's 2000 session at Teahupoo in Tahiti, a wave so thick and shallow that surfers who watched the footage back describe it as something closer to a natural disaster than a ride. Interviews with the surfers themselves carry the narration, mixed with archival photos and film that show how equipment, technique, and sheer willingness to risk drowning changed over four decades. The film treats wave-riding as obsession rather than recreation, and lets the men who nearly died doing it explain why they kept going back.