Race for the Yankee Zephyr (1981)

Plot

Hunter Gibbie Gibson stumbles upon a WWII plane wreck in a remote New Zealand lake, sparking excitement about the rumored $50 million treasure buried within. However, news of his discovery attracts a dangerous gang, who threaten Gibbie and his daughter to claim the fortune for themselves. In a bid to protect them, helicopter pilot Barney steps in, putting his own life on the line to fight against the criminals. The tension escalates as Gibbie and Barney navigate treachery and danger in their quest to safeguard the treasure and their lives.