In 1578 the legendary Sir Francis Drake captures a Spanish galleon filled with Inca gold and silver and the key to the lost treasure, which includes a gigantic chain of gold, a masterpiece of ancient technology so huge that it requires two hundred men to lift it and a large pile of diamonds worth more than 200 billion dollars that belonged to the last Inca. As the galleon is sailed by Drake's crew back to England, an underwater earthquake causes a massive tidal wave that sweeps it into the jungle. Only one man survives to tell the tale...