A mysterious yard sale sends a Vietnam vet on a mission to save his counterpart, a vet from the Afghanistan war. When Marybeth, a secondhand shop owner, acquires an old army helmet and some love letters at a mysterious yard sale hosted by a ghost, she doesn't know where to start. Visions of a young soldier's departure for war are seared into her brain. The soldier's plea to "save my son's life" swirl in her head. At the same time Marybeth's boyfriend, Josh, gets a cryptic message from his deceased mother, and drives the four hours from Connecticut to Pennsylvania to check in on her. Together they begin to unravel the mystery set in motion by the yard sale. When they enlist the help of her father, Sean, a Vietnam vet, they find themselves way out of their league. Sean realizes the helmet is his, swapped with another soldier in combat forty years ago. He's been gripped with guilt for years. The other soldier did not survive the battle. As he touches the helmet, he also hears the soldier's plea, "save my son's life" and immediately calls in reinforcements, his VA buddies. The whole crew embarks on a mission to save a recently retired soldier from himself. But it won't be easy. First they have to find him.