100-Foot Wave, Chapter II - Undertow

After a startling realisation about his health, Garrett returns to Nazaré, eager to get back to his peak. Tony and Justine join forces.

Garrett's wipeout leaves him seriously injured. CJ Macias gets back on a board after recovering from his own accident. Chumbo reflects on his surfing priorities.

Garrett, Nicole, Cotty, Justine, Chumbo and Nic set out on an overnight boat to Cortes Bank, an unusual and legendary surf spot in the open ocean 100 miles off the coast of San Diego, when a rare swell appears.

Top surfers from around the world flock to O'ahu for the prestigious Eddie Aikau Big Wave Invitational. Garrett is not invited to participate. Everyone celebrates the unexpected winner.

Big wave surfer Garrett McNamara continues his relentless pursuit of giant waves as the Emmy-winning documentary series reaches its third season.