Hunt to Kill

Hunt to Kill is a 2010 Canadian action film starring Steve Austin, Gary Daniels, and Eric Roberts.

After Jim calls for backup, Jim and Lee decide to go in. What they find is a meth lab that looks abandoned. But two men come up from a door that was built into the trailers floor, and they open fire, shooting Lee.Jim kills the two men, and another man opens fire from under the trailer. Jim makes the man come up through the same door the other two came through, and the man sets the trailer on fire. Lee kills the man, and Lee tells Jim to run, just before Lee dies. Reluctantly, Jim leaves Lee behind, running out of the trailer as it explodes because of the highly volatile chemicals used for producing meth. ........

Source: Wikipedia