An 18-year-old Nancy Drew makes plans to leave her hometown for college after high school graduation, but finds herself drawn into a supernatural murder mystery.

When Nancy learns that Tiffany Hudson's corpse is being moved out of Horseshoe Bay for a private autopsy, she puts her investigation into Lucy Sable's dress on hold to pull off one of her most risky missions yet.

As the funeral for Tiffany Hudson nears, her confused spirit seemingly haunts Horseshoe Bay. Nancy invites Bess to stay with her, allowing Nancy to figure out what Bess is hiding. Nick struggles with what he learned about Tiffany.

The gang resolves to find a way to speak with the only eyewitness to Lucy and Tiffany's murders -- Lucy herself. Nancy is faced with a truth that seems to validate her greatest fear.

Nancy and the Drew Crew discover that the car wreck that left one of their own at death's door was no accident. While simultaneously hoping to solve the crime, the crew investigates the physical evidence of sabotage to the car and take a supernatural detour into the metaphysical world.

In our winter finale, Nancy and the Drew Crew desperately search for George’s missing sister, Ted, whose kidnapping eerily mirrors the investigation that started Nancy’s sleuthing career. Meanwhile, while revisiting the trauma of her past, as a means to solving the present-day mystery, Nancy finally reconnects with her father just as an escalation in the Lucy Sable investigation threatens to separate them forever.

While using a combination of forensic clues, skilled observation and relentless questioning of those who knew Lucy at the end of her life, Nancy unravels what happened the night Lucy died. While her detective work succeeds in some ways, it also reveals a devasting truth.