Dirigible.

Dirigible commander Jack Braden and Navy pilot 'Frisky' Pierce fight over the glory associated with a successful expedition to the South Pole and the love of beautiful Helen, Frisky's wife. After Braden's dirigible expedition fails, Frisky tries an expedition by plane. Unfortunately he crashes and strands his party at the South Pole. Braden must decide between a risky rescue attempt by dirigible and remaining safely at home with Helen.