An animal is said to be the most dangerous when cornered.  After crossing the river, the group takes a wrong turn and becomes trapped.  With no help in sight and a wall of the living dead surrounding them, how many waves can they fight off before they're overwhelmed? 

 Zombies on a Plane!  Had to get that out...it seems that no place is safe from the dead menace, as even Air Force One has been taken over.  The USA president, as well as the Vice President, have been infected, and the capitol is seen burning in the distance.