Filmmaker Steve Judson, who received an Academy award nomination for his documentary Dolphins, explores another variety of inner space in this film, shot in the high-definition IMAX process. Dr. Hazel Barton and Nancy Aulenbach are scientists brought together by their interest in caves -- Aulenbach researches the life cycles of plants and animals that thrive in caves, while Barton believes study of the ecosystems of caves might provide valuable information on treating diseases in humans. Barton and Aulenbach are joined by veteran spelunker Janot Lamberton as they explore spectacular cave formations in Arizona, Mexico, and Greenland. Journey Into Amazing Caves is narrated by noted actor Liam Neeson.