After a major fight with Billie and Zane, Macy asks Miles to accompany her to an abandoned jail where, unbeknownst to her, her killer lies in wait. Billie and Zane investigate the killer's note.

Reunited, the trio takes on the final clue which leads them to a nearby woodshop, where they find Miles talking to a mysterious man. They must find out who Miles really is and who he's working with.

Macy must determine how to defeat James Gillies, William Murdoch's nemesis, when he threatens that she must choose between her life, and that of her friends. "