In the fall of 2021 and the start of the new big wave season, Garrett McNamara is now the director of the World Surf League's Tow Surfing Challenge in Nazaré, but eight-month pregnant Nicole McNamara and their young children fall ill with COVID-19, complicating his preparations and the plans for the birth. When the competition begins in December, Tony Laureano isn't invited to participate with the best in class. For the surfers competing, challenging conditions and terrifying wipeouts highlight the importance of their relationships with jet ski pilots who are also rescuers. Nicole McNamara gives birth to baby Fé.

In the wake of CJ's frightening search and rescue, the surfers find themselves reflecting on the dangers of their sport. When another WSL contest in Nazaré is announced, Tony's dreams of competing against the best in class are finally realized… then quickly fall apart. As for Garrett, the end of the surf season becomes a time to recalibrate his priorities.