Twyla the firefly loves her peaceful country life with Grandma Fannie and Grandpa Fog. But when her cousin and best friend, Fiddle, goes missing right before the big Ramblin' River Bluegrass Festival, Twyla knows something is terribly wrong. As the twinkling tunes of a bug-sized bluegrass festival fill the air, Twyla embarks on an adventure like no other. Join her in this heartwarming tale of family, friendship, and finding your way-even when the path is dark.