Maddie searches for clues on how to reunite with her body. Janet goes on the run; a conflicted Simon struggles to protect his own grasp on reality.

As the ghosts continue searching for Mr. Martin inside Split River High, Maddie worries about her future. Janet is haunted by her past at her family's farmhouse.

The ghosts look back on Janet's Sweet Seventeen celebration in order to decode the truth of her past. Simon, Nicole and Xavier continue their search for Janet in an unlikely place.

Janet/Maddie returns home to a shocked and relieved Sandra. The ghosts discover the objects from their passings unlock hidden spaces. A mandatory school event uncovers tension between the living kids who are more concerned about Janet's return.

When Janet invites Maddie's friends over for dinner, the ghosts and the living must work together to find out her intentions. Maddie uncovers intel about Janet that shakes her resolve.

Maddie and the ghosts find a link between their scars; tensions rise between Simon and his team at a remote cabin.

Janet resorts to violence to escape Mr. Martin, then demands Simon take her back to school; she finally provides answers to the ghosts about her work with Mr. Martin while he uses Mr. Anderson's body to terrorize the living kids.

Maddie and the ghosts confront Mr. Martin, ultimately trapping him in the afterlife; new information leads to a chase through the school's scars, delaying Maddie's return to the living world and putting her body in jeopardy.