I watched this on the plane at the start of my holidays. It is what it is, a purportedly authentic as you can get U.S Navy SEALS on a mission movie. It actually started out as a recruitment film. The tunnel used by people smugglers under the US / Mexico border that the bad guys intend to use to bring in suicide bombers? - there really was one just like it discovered recently, as I discovered on the US morning news. As action films go, it's not bad, wooden acting as you would expect from non-professionals, but everything else is engaging enough. It passes the time, put it that way.