Grug accidentally reveals a subterranean cave beneath the treehouse. When Phil can't convince Hope, Grug, and Ugga that the treehouse is more impressive than the new cave, he sets out to destroy the cave.
Guest Cast
Hannah Parrott
voices VocalistCast Appearances
Kiff VandenHeuvel
voices GrugAmy Landecker
voices UggaAlly Dixon
voices EepA.J. LoCascio
voices ThunkArtemis Pebdani
voices GranDarin Brooks
voices GuyMatthew Waterson
voices PhilAmy Rosoff
voices HopeAbby Trott
voices DawnEpisode Discussion
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