Taped 333 feet below ground within the labyrinth of Tennessee's Cumberland Caverns, this program is the second compilation of the best of the twelve-part musical adventure series. Featuring the top established and emerging artists within the bluegrass, newgrass, gospel, roots and American genres.

Lesson in country and bluegrass flatpicking style for intermediate level guitar players taught by Doc Watson. He demonstrates hammer-ons and pull-offs, crosspicking, movable chord positions, runs and improvisations, and other techniques. He trades licks and plays duets with fellow-flatpicker and host, Steve Kaufman, and plays three blues-based songs with his grandson, Richard Watson.