While acclimating to purgatory at Split River High, Maddie becomes determined to solve the mystery of her disappearance. While observing those she left behind, Maddie begins to realize everyone is not as honest and loyal as she once thought.

As she grows close to the spirits in the ghost world, a driven Maddie begins to unravel the events surrounding her death, only to discover someone other than Xavier may have been involved.

Questioning their existence, the spirits seek Mr. Martin for answers. Maddie must confront the latest suspect which challenges everything she thought she knew before. Xavier, Claire and Nicole look for answers at an abandoned house. When the truth is finally revealed, Maddie must face unexpected and devastating consequences.