How U 977 Escaped To Argentina Discover how a single submarine undertook one of the longest and most unusual voyages of World War Two 🌊⚓. In May 1945 after Germany surrendered U 977 commanded by the young officer Heinz Schäffer made a bold choice. Rather than surrendering the boat departed Norway and headed south into the Atlantic. For more than one hundred days the crew lived beneath the sea relying on limited batteries failing engines and careful navigation to remain hidden. Explore how thirt