John Wayne plays anti-Nazi Prussian sea captain Karl Erlich in Sea Chase, one of the many film commentaries released post WWII. Though staunchly opposed to the Nazi regime, Karl (Wayne) feels it would nevertheless be unpatriotic should he refuse to save his ship from destruction. His ship--an old, rusty 5,000 ton freighter named the Ergenstrasse--is being pursued by a British warship on his journey from Australia back to Germany. Captain Erlich does everything he can to save his ship and his crew, but the process is long and dangerous, particularly without a plentiful supply of fuel and provisions. Erlich must face obstacles ranging from horrendous sea storms and shark attacks to false murder accusations, and it seems his only devotee is Elsa (Lana Turner), a beautiful German spy. Despite nearly falling to the determined English ship and a mutiny attempt by his own crew, Captain Erlich manages to survive what was anything but a routine trip back to his home country.