I've only watched the first two eps of this four-part BBC mini-series but so far it's superb. It's a crime drama about three employees who plan and execute a heist at the security depot where they work. It starts with the heist itself - which is thrilling, brutal, terrifying - and then goes back and forth in time to show how it all came about and how it all turns out. Steven Mackintosh gives a great performance as the manager of the depot; a quiet, reserved man who isn't quite as mousy as he first appears.
Highly recommended!