When Penelope discovers an old trunk in the attic of her home, her curiosity leads her to check its contents. She finds a beautiful, but dusty, opal pendant and is delighted with her find - not realising how much it will affect her life.

Little' Tony Piccolo is a family man and small time, blue collar enforcer who, gripped by a sudden mid-life crisis, decides he wants out of the gangster business.

A special forces unit sent, to infiltrate Pine Gap Australia's top secret underground military compound, come under attack from unknown forces.