Brash, boozy Gunny O'Malley, retired Marine and Vietnam vet, struggles in his civilian life as a TV actor and bar owner.

When his Yazidi bartender announces plans to rescue his sister and mother from certain death at the hands of ISIS, Gunny and best friend Buzz must decide how to best help the young man and his family.

Meanwhile, Vietnam flashbacks and memories of his Semper Fi brothers continue to haunt him.

Will Gunny heed his girlfriend's pleas to stay home, or is a journey to hellish, war-torn Syria what he needs to finally slay his demons?