It's early morning in Stockholm, Sweden. The overnight crew at the G4S money depot works at full speed. With just two days until payday, the cash depot is nearly bursting at the seams with $150 million. Between the hustle and bustle, a bang rings out. Then another, and another. Then…CRASH. Three men armed with guns and explosives suddenly rain down from the ceiling, the beats of a helicopter's blades resonating through a new hole in the glass roof.

The depot was being robbed… from above.