Two Alaskan salmon fishermen, Tyler Dawson (skipper of the "Who Cares") and Jim Kimmerlee of the "Old Reliable," are lifelong pals. Their romantic rivalry over young Dian ends amicably. But a more serious rift, with violent consequences, arises when Tyler befriends Russian fish pirates while Jim finds himself aligned with local vigilantes. Notable glacier scenery.

Polio breaks out in Rio de Janeiro, the serum is in Santiago and there's only one way to get the medicine where it's desperately needed: flown in by daring pilots who risk the treacherous weather and forbidding peaks of the Andes.