When A.T.A.C. (American Teens Against Crime) agents across the country are all suddenly pulled into strange and bizarre cases, itÕs up to special operatives Joe and Frank Hardy to find out exactly what is going on! But this wonÕt be easy – whoever is behind these seemingly unrelated cases is throwing A.T.A.C. into chaos. And just to complicate matters further, it appears everyone Joe and Frank, the Undercover Brothers, have encountered in the past are somehow involved! Characters from previous graphic novels such as Lindsay Ryder, the Sisters Noir, Dennis Hogan and many more are all back in the wildest Hardy Boys case ever!