DuckTales
Too Much of a Gold Thing
S1 E5:
Our gang of adventurers ends up in the jungles of Peru. Battling river rapids, alligators and snakes, they find the fabulous Treasure of the Golden Suns. It is more gold than is humanly imaginable! Just when our billionaire duck thinks he will be even richer, he is confronted by the nefarious El Capitan, who wants the gold to himself. Scrooge is happy to escape with his life, as a river of molten gold engulfs the valley of shining wealth.