Syd and McKenna are called to investigate when a body seems to plummet from the sky; the partners realize they need to trust each other to escape the ghosts of their pasts.

McKenna is unable to keep hiding the truth about her mother's accident from Syd. Arlo plots against people Syd loves. Syd and McKenna continue to hunt for the killer of the transgender woman and her fiancé.

Syd and McKenna ramp up their personal search for Gabriel Knox and let the Bens in on their search for Arlo. Syd faces a family crisis. McKenna must make a difficult choice.