A mysterious female voice on the phone forces a layabout (Shia LaBeouf) to take action.
Unable to ignore the commands, he is forced into a series of bizarre, life-threatening situations along with similarly trapped single mother Michelle Monaghan.
Two appealing stars, virtually non-stop exciting action and state-of-the-art effects smarten up a preposterous tale that climaxes in a plot to kill the US president.
Michael Chiklis and Billy Bob Thornton add class as the Defense Secretary and chief CIA man and, if you’re wondering, the voice is an uncredited Julianne Moore.
This film is showing at 11.40pm on BBC1 Wales and 12.10am on BBC1 Northern Ireland.