A man takes a small boat trip from Panama to Colombia, experiencing seasickness along the way. The captain, Henrik, is a weathered sailor who spends his days teaching and his nights drinking heavily. They stop at the San Blas Islands, where Henrik insults a local chief after drinking. One night during a storm, the drunk Henrik fails to help at the helm, forcing the man to steer through large waves alone. During a swim, the man panics upon seeing a fin in the water, but it turns out to be a playful dolphin. By the end of the trip as his seasickness worsens, they illegally enter Colombia at night to avoid authorities, with Henrik continuing to drink as