The film follows Issac (Taylor-Johnson) and Matthews (Cena), two soldiers who have been sent to scope out an area of Iraq that has called for assistance. Finding the area full of dead workers, all taken out by sniper fire, the two men have been watching the area for hours before declaring the area clear. Unfortunately for them they are not alone, and a lone Iraqi sniper takes Matthews out leaving him defenseless in the middle of the desert. As Issac attempts to help his fallen friend the sniper takes aim at him, shooting his leg and forcing Issac to take cover behind a crumbling wall. When I say crumbling wall, it is the most flimsy badly built wall you have ever seen. This really builds the tension in the film, especially early on when Issac is trying to make a hole to place his scope and gets part of his hand caught in the falling rubble.
The film continues as Issac and The sniper, who we find out is named Juba, a myth among the soldiers as a ghost sniper, start to talk with Juba trying to get inside the head of Issac.The mind games continue as Issac tries to figure out where Juba is hiding, all the while not knowing if his friend is still alive.
The Wall is tense, and Taylor-Johnson does a great job here, but overall the film does a have a few moments of tedium. You don't get the same race against time feel that you get with Buried or Grand Piano but what really works in this films favor is the performances.
This is a good watch, and if you like your war films tense you will like this one. Cena is good for the small scenes he is in and Taylor-Johnson is amazing throughout.