Superior special effects make this fantasy adventure a respectable endeavor. Mahoney heads an expedition to the Antarctic, but his helicopter is damaged when it collides with a giant flying bird. The group is forced to land in a place inhabited by creatures from the Mesozoic Era. Also
stranded there is Brandon, a scientist from an expedition made 10 years earlier. He has gone insane during his stay, but has somehow managed to survive. The parts from his disabled helicopter allow the stranded crew to repair their own and to return to civilization. Well-directed, with believable
performances, including that of Brandon, who was an actual member of Adm. Richard Byrd's ...