Having fled New York and all he knows in fear for his life, Billy Gogan enlists in the U.S. Army on the eve of the Mexican-American War. Amidst the bloodshed, he is sent on a mission with the Texas Rangers, which ends in a tragic war crime. Billy's latest adventure leaves him on a lonely rooftop as the battle rages about him.

Having fled New York and all he knows in fear for his life, Billy Gogan enlists in the U.S. Army on the eve of the Mexican-American War. Amidst the bloodshed, he is sent on a mission with the Texas Rangers, which ends in a tragic war crime.