Deep in the Arizona desert,U.S.Army developers have been building a tank the likes of which the world has never known.It's called the M4X1 FRANKS COMBAT SYSTEM-or TOMMY-and there's no stopping the country that controls it.Everyone just assumed it would the good old U.S.A.,but in a sudden and carefully orchestrated attack,Iranian terrorists have captured all the TOMMY prototypes and hidden them somewhere in Mexico.