Welcome to Blackbird, a small Midwest town with a big paranormal problem.
As an Observer, Seth is tasked with identifying lost souls. An unenviable job under normal circumstances, but the situation takes a turn for the worse when Blackbird's Guardian calls it quits. With no one to take her place, Seth finds himself partnered with Desmond, a powerful and intimidating Warrior, who sees the downtrodden Observer as a liability.
Desmond's fears are all but validated when a magical disturbance draws even more Discordant creatures to the area, including a deadly femme fatale from Seth's past, and Bogie, a demon with a heart of gold and a tenuous grasp on the English language.
To save Blackbird (and eventually the world), the agents must set aside their differences and team up with a ragtag group of local mystics. Together, they might win the day, or they just might make things a whole lot worse.