You've been selected by the State Department to protect the President on his tour of the UK.  After a meeting of heads-of-state,  you and your team are escorting the President back to his vehicle when you suddenly come under attack.  With your comms down, you take cover in nearby woodland - but quickly find the only way out is to bundle the President onto an old double-decker bus and smash your way to safety.  Will you put your life on the line for the President?