Mel Hargrove has one mission tonight—to formally invite her dead relatives to her upcoming wedding. It should be easy enough, with her friend opening the portal, Mel's mother running interference, and the groom-to-be, Becker, promising to stay by her side no matter what. But things rarely go smoothly at Hargrove Junkyard, a place filled not only with junk but with a bunch of ghosts who have not yet passed over to the Good Place. So when a new menace arrives on the scene, taking her ghostly friends hostage and trying to run roughshod over her business, there's only one thing for Mel to do—call in the troops and go to war, right after she deals with her irritating grandmother.