History comes alive - with ghosts! Anderson finds himself drawn to the old trunk full of military relics in the basement of his family's junkshop. His friends Greg and Julie warn him to stay away from it, but he can't help himself. This time Anderson finds a cool old grenade that has a strange message scratched into it. But an old grenade is dangerous . . . and so might be the ghost that appears with it: an intimidating soldier in army fatigues and covered in mud. What does this ghost want with Anderson, Greg, and Julie? Is he here for their help - or for something more sinister? As the friends struggle to find answers, they discover that this ghost served in the Vietnam War, only he went MIA. But there has to more to the story than that . . .