After getting injured in a dogfight with the Red Baron, Smithy is awarded the military cross and becomes a pilot for Australian Airlines.

Though Keith and Smithy's new business is booming, Smithy is keen to return to the Pacific; Smithy's marriage falls to pieces.

Keith and Smithy go head-to-head in a battle to break the record for fastest flight around Australia.

After falling short of breaking the air endurance record on his first try, Smithy worries about his ability to cross the Pacific.

After Smithy finishes his flight across the Pacific, he returns to find fame and fortune waiting for him. He is flying high until Keith hits him with a subpoena.

After losing Keith and dealing with warnings from his friends and family, Smithy continues to break aviation records no matter the cost.