A TON OF GRASS GOES TO POT (a.k.a. THE BIG SCORE) 1972 On DVD. Marijuana, smuggling, rock and roll, stoned hippies, Nazis, black bikers, crooked cops, a shootout, and the one-and-only, Doodles Weaver! A guy knows where a ton of marijuana is stashed in Tijuana, Mexico. He sells the information to four middle-age guys for $8K. They see this as their get-rich-quick opportunity so they hatch a scheme to move the ton of pot across the border in a hot air balloon.