Nancy and the Drew Crew race against the clock to find a way to destroy the Aglaeca before she can destroy them. Ace reaches out to Carson for a favor.

Nancy picks up a new investigating job involving the local florist and is pleasantly surprised when Gil Bobbsey is able to offer some assistance. Meanwhile, Ace receives a cryptic text message.

Nancy's birthday dinner with Carson is cut short when Detective Tamura shows up with a warrant to arrest her for contempt of court. Meanwhile, George, Bess and Ace work together to summon up one of their ancestors to help locate Odette's Englishwoman lover Mary's soul amongst billions in the spirit world.

Sleepwalking suddenly spikes in town and Nancy questions whether Frozen Heart murders has been solved.