The Emerald Forest (1985)

"What kind of man would return year after year for ten years to rescue a missing boy from the most savage jungle in the world? His father."

For ten years, engineer Bill Markham has searched tirelessly for his son Tommy who disappeared from the edge of the Brazilian rainforest. Miraculously, he finds the boy living among the reclusive Amazon tribe who adopted him. This is when Bill's adventure truly begins.