The Abyss

Low's Gully, a two-mile-deep fissure in the mountains of Borneo, made world headlines in 1994 when a British army expedition there went disastrously wrong. Now a new team is filmed by Edinburgh cameraman Duncan McCallum for Cicada Films as they attempt to conquer the mighty chasm, with power struggles and personality battles making the journey a test of the human spirit as much as the body.