A school bus carrying a group of high school students is swallowed by a giant sinkhole, in this exciting disaster tale. Trapped underground, the teens must stick together if they have any hope of making their way to safety. Tensions rise as the situation becomes increasingly more grim, causing them to slowly turn on one another. Can they escape their subterranean nightmare? Gina Holden, Jeremy London, Brooke Mackenzie, and Eric Roberts star. 90 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital 5.1.