Omar Grebes never slows down. When he's t 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.