Here's the premise. Weisbecker's old friend and surfing buddy Chris, aka Captain Zero, deserts his old life in the States and heads somewhere into Central America, cutting off all contact with his family and friends. Something like five years later, Weisbecker loads up his trailer and sets off along the Pacific in search of him.
It's more than just an account of his journey, it's a memoir. He inserts little tales from his past with Christopher. He talks about living in Hawaii during the advent of the short board. He describes a few failed attempts at running drugs from South America, and talks about growing up fishing off the far end of Long Island. He lets his personal philosophy bleed into all of the stories, and he really draws you into his worldview. Above all, it's entertaining. You'll probably find yourself wanting to do something slightly illegal and adventurous when you're finished.
As a side note, I think Nathan met Captain Zero in Costa Rica. Apparently he owns a book store somewhere near Puerto Viejo on the Caribbean side.