After a massive sinkhole swallows a nearby town, a school bus filled with students is dropped deep underground. After the crash, the students realize the bus is hanging precariously against the side of the sinkhole, held in place by a broken pipe. Any sudden move could send the bus plummeting into the darkness below. Alone and with all the adults injured, the teens struggle for survival with the story taking on shades of Lord of the Flies. Their only hope is a small-town paramedic, who must overcome a tragic past to rescue the students.
Gina Holden
as Joan
Brooke Mackenzie
as Paige
Dominika Juillet
as Heather
Jeremy London
as Gary
Paris Dylan
as Jason
Eric Roberts
as Cutter
Kelle Cantwell
as Lana
Nicole Gordon-Levitt
as Penny
Kaitlin Wright
as Sandra
Robert Pike Daniel
as Caldwell
Eric Scott Woods
as Lawson (as Eric Woods)
Steve Rizzo
as Chet
