Omar Grebes never slows down. When he's not shredding concrete at Ocean Beach Skate Park, he's kicking through surf at Imperial Beach or scarfing down fish tacos from the nearest roadside shop. Soon, his wiry six-foot frame and live-or-die lifestyle catch the attention of big-name sponsors. But one of them offers Omar more than he bargained for . . . a chance to join the mysterious 900 Revolution and claim a piece of history.