Just when Hardy Boys are starting to move past the Aftermath of Hayden's abuse, the hospital fire, grieve for the loss of a good friend, Frank is being framed for the murder of Jack Hayden. Joe is determined to clear his brother's name and find the real killer, things started to heat up when Joe's life is threatened in A Brother's Revenge

When Frank and Joe go searching for their friend Tony kidnapped by Heartless. They get kidnapped as well. The brothers make a startling discovery that the former leader is very alive and has Tony brainwashed into thinking they are the enemy. And wants to kill them. Can the Hardy Boys save their friend in time before they lose their minds or lives?

A crime wave involving teenage boys has hits the town of Bayport. The authorities suspect a new terrorist organization called "Heartless" is behind it the crimes. The Hardy Brothers are determined to stop this organization from recruiting teens. While trying to free their friend Tony who was forced to join Heartless. Will Frank and Joe become Heartless in order to save their friend