Rod La Rocque stars as Dr. Carl Lawrence, leader of a mission to Greenland to recover the lost records of the ill-fated, real-life Alfred Lothar Wegener polar expedition of 1929-30. Lawrence's party includes experienced explorer/guides, as well as an adventure-seeking financier, who is in over his head and slowly driven mad by the perils of the voyage. When Lawrence's band is trapped on an iceberg, Lawrence's wife Ellen (Riefenstahl) -- a famous female pilot fashioned after Amelia Earhart -- takes off on a rescue mission, but she crashes her aircraft upon landing and is stranded along with the others.