A bomb expert comes in to blast impenetrable rock for the Bishop. The Cheals race to move a rock-extracting blower before heat damages their machine. The Misfits battle avalanches and dust storms.

Scotty gets lost while exploring hidden tunnels on the Bishop's massive claim. Jack and Mickey are nearly crushed as the Tarantos try to move their machinery. Greg explores the hidden tunnels on his claim searching for white opal.