The Fortune Code

Set in China during the Japanese occupation. A young man breaks out of a POW camp to marry his sweetheart, but finds she is now a spy for the resistance, code-named "Number 3". With the help of "Number 2" he returns to the camp to find "Fortune", an agent who possesses the pass-code to a Swiss bank account with $500 billion intended for the Chinese army.
(Source: IMDb)