Adapted from the children's literary classic, this enchanting animated production reminiscent of "The Lion, The Witch, and the Wardrobe" follows siblings Penny, Pamela, Patsy, and Peter Berton into a mysterious cavern they discover underneath their clubhouse. In this magical new world, the youngsters undertake amazing adventures and learn valuable lessons about life. Originally broadcast as an episode of the "ABC Weekend Specials"; stars the voices of Fred Travalena, Janet Waldo, and Noelle North. 70 min. Standard; Soundtrack: English Dolby Digital stereo.