Treasure of the Yankee Zephyr

This movie is based on a true to life incident about the disappearance during World War II of an American DC-3 military airplane which was carrying the payroll for the American Pacific Fleet and crashed but was later found off Cape York in North Queensland, Australia. Screenwriter Everett De Roche has said he conceived the film from this story, which had been told to him by one of his neighbors in Mount Isa in Queensland, Australia.

When Brown's goons confront Barney at the farm, the chopper is running. He even throttles it up to make his point clear. However, when Brown and his goons drive away, Barney jumps into the chopper, which is no longer running.

After the first unit credits, Theo Brown pops up in the lake, wearing an inflatable life vest and bellowing for help. He continues to call for assistance as the second unit credits roll.

Edited into MacGyver: A Prisoner of Conscience (1986)