“Garrison” (Michael Douglas) has been working on the US Presidential Secret Service detail closely, indeed a lot more closely than even his boss realises. Then, one of their number is slaughtered on his own doorstep and with the G8 summit in Canada looming, they get wind of a plot to assassinate the President. Somehow his colleague “Breckinridge” (Kiefer Sutherland) gets it into his head that it’s his long-time friend who is behind what have to be serious security leaks and so now with his erstwhile protégé disgusted at what “Garrison” might have done and instituting an investigating that…