Double Barrel follows surf and travel journalist Angie Takanami as she travels to Peru to document Peruvian surf guide Harold Koechlin's efforts to protect the country's renowned surf spots. Following a chance encounter, they share stories of overcoming natural and human-caused hardships, and their visions for responsible surf tourism. Based in the oil-producing town of Lobitos, Harold collaborates with locals and international partners, determined to safeguard the community's access to a clean ocean and environment for a more sustainable future.