Search for Mobile: Kings Bay, Spitzbergen - Shots of Riser-Larsen plane, Major Maddalana giant seaplane taking off in fjord, airborne. Shots aboard ship, of captain, icebergs along coast. VCS of Umbero Nobile with crew. LS of Italian warship, Italia and Cite de Milano. Shots of dogteam hauling overloaded sled through deep snow. (256')