Audio is low on screener A great blast opens a quarry for use, shattering a compact mass of 100,000 tons of rock that has made the subterranean caverns a deadly labyrinth of death, defying all similar efforts since 1931. Establishing shot - Workmen walking in quarry carrying T&T. MCUS - Workman sticking explosive into the wall of the quarry. MS - Crowd of people watching the workmen. CUS - Man pushing down the plunger setting off an explosion. MS - The rock wall of the quarry crashing down. CUS - Faces of two demolition men. CUS - The mass of rock that had fallen.