A young woman has vital information that could save millions of lives, and Charlie Holt is chosen to pilot a newly-built airship to evacuate her from France.

In return for her intelligence he must guarantee the safety of her and her invalid mother. But retrieving two women from war-torn France is easier said than done.

Holt sets out with the help of a marine and an air mechanic, but when all his best laid plans go terribly wrong, he has to finish the mission alone. Only success against the odds can save his honour…