M-G-M's Lassie #23

Lassie and her friends journey to Lima to meet Senhor Vega of the Peruvian National Museum, but soon find themselves caught in a web of deception when Vega’s assistant, Dr. Ricardo, teams up with the mysterious Senhor Paraces to steal the museum’s true treasure using a cleverly forged hoard.

Lassie and her friends soar across the skies to the Madeira ranch in Argentina, where the rhythms of the pampas stir something new in young Pedro. Drawn by the local riders’ rhea hunt, he convinces Lassie to join him on a daring ride through the open plains—where every stride could lead to adventure or danger.

In "Forest of Fear," Lassie and her friends find themselves in Asunción after a flight from Argentina, where they meet Senhor Serra, a man whose hardwood lumber camp upriver is about to be inspected. With the manager and his assistant secretly profiting from stolen timber, Lassie must navigate the dense jungle and uncover the truth before the camp’s integrity is lost.