Season four of Nancy Drew begins as Nancy launches a new investigation to find a group of missing bodies from Horseshoe Bay's cemetery that have been dug up and stolen - or have possibly risen. As Nancy is drawn into this ghostly case, a string of unexplained paranormal crimes leads the Drew Crew to believe that the literal sins of the town's past have returned to haunt the living. Meanwhile, Nancy struggles with yearning for Ace, the man she loves. But when a slow-burning attraction begins between Nancy and the son of Ryan Hudson's newest enemy, Nancy must decide whether this love interest is worth the ire of both her father and Ace - whose own heart may also be tempted by a new relationship. Nancy's exploits this season will bring the Drew Crew numerous standalone cases, stunning twists, humor, and unexpected romances as they are drawn into a season-long mystery unlike any they have had to solve before. When Nancy's efforts to protect her seaside hometown from the sins of its past backfire, she must do the unthinkable to save her friends from both the supernatural and earthbound threats coming for them - and it could cost her everything, and everyone, she's ever loved.