A Dog Called Hero.

Hero is no ordinary dog. He works for the U.S. army and stands guard sniffing bombs and land mines. He works during the night just in case someone tries to sneak in unsuspected.
Hero has done some pretty good deeds in his past. But on one night, he messes up. BIG time. Now his owner is released from the army and safe at home, while Hero is bought to the pound.
Can Hero make it back to his owner in time? or will he have to become euthanized?