Two miles into the earth, nine Appalachian miners struggle to survive after a methane explosion leaves them with one hour of oxygen.

A 12-year-old Kansas orphan turns to the Scarecrow and the Tin Woodman for help during a difficult time. She imagines that things have not gone well in Oz since the Wizard left and that the Scarecrow and the Tin Woodman must travel to Kansas to find Dorothy.