Frank and Joe Hardy return to detective work when a classmate goes missing.

The gang races to stop a potential bombing at the Demon Day Parade, while Fenton makes a shocking discovery of his own.

When Dr. Burelli plans to move Dennis to another facility, Joe fears the worst and convinces Lucy, Biff and Phil to help him stop her.

Frank and Callie make a shocking revelation about the Project Midnight test subjects, while Joe impatiently tries to enlist the help of J.B. Cox to get the power out of Frank.

Joe conspires with J.B. to steal the relic from Stratemeyer Global and get the power out of Frank, but The Eye has other plans.

With Frank missing from the school dance, Joe and the gang must race against time to locate his whereabouts and stop the Shadow Man from completing his ultimate plan.