Watch out for brain freeze. Amidst a blustery winter storm, the waves on Lake Superior are just right for Dan Schetter. Dodging sheets of ice, he launches in the water with abandon to do what saved his life: surf. Nothing clears the head like a plunge into cold water—precisely what’s needed when you want to leave your drinking habits behind. A sober SURFER DAN introduces us to his drug and remedy, proving that a real surfer needs no palm trees, no tan lines, and—most importantly—no excuses.