The millionaire playboy caveman Millstone Rockafella has organized a BC bike race, the winner of which will receive the Ultimate Boulderdash Bike. Six groups of riders - one driving, one deploying weapons from the sidecar - from all around the prehistoric world will use their rock-powered sidecars to compete for this prize.

The millionaire playboy caveman Millstone Rockafella has organized a BC bike race, the winner of which will receive the Ultimate Boulderdash Bike. Six groups of riders - one driving, one deploying weapons from the sidecar - from all around the prehistoric world will use their rock-powered sidecars to compete for this prize.