In the "Whodunnit?" Series Finale when Catherine gets taken by Adrianne, Zach is left with a choice to make. What will he choose? And what does it cost?

As the story continues to piece together, Zach now finds himself on the wrong side. Who's truly in the wrong? Who's truly to blame?

Mark comes to the cabin to share the truth about the Randells, and it's nothing like you might think.

As Zach and Catherine go into hiding, they realize that there is more to the story than they thought.

Now being framed for the murder of Doctor Fewlend, Zach and Catherine are forced to go off the grid.

After Doctor Fewlend's murder, Zach and Catherine come face to face with the criminals behind everything. The past is brought to light, along with secret identities and a new mystery all in a thrilling season finale.

As Zach gets arrested for a crime he didn't commit, he has to confront familiar faces and a new enemy.

In an attempt to cover up his tracks, Calvin makes an even bigger mess, leading Zach to uncover the truth.