The Hardy boys and the gang embark on a daring mission to finally uncover the truth...but in revealing the truth, could they unleash a dark power beyond their control?
Taking a step farther than their mother did and learning the nature of the object at the heart of the mystery, Frank and Joe's unity fractures over what to do next. Tensions between Chet, Callie, Frank and Stacy reach a peak.
Frank and Joe exchange truths with their Grandmother and find a long-hidden secret in her home. Fenton finds what he's looking for. Meanwhile, other forces work against them all.
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.