When Corey starts dating Tommy's kid sister Chrissy, the Daggers are furious. The boys then take their beef to the "L.A. Massacre," a deadly skate race down a canyon road.

For the past 30 years, Chopper has been part of the Osaka Daggers, a skate collective named after a gang in the 1986 American movie “Thrashin.” When he started coming to Triangle Park in the ...