Paramedic Dean Flynn is finally getting used to his Unusual ambulance patients, the creatures of myth and legend who live among us all. But with werewolves, vampires, fairies and more as his 911 patients, is he ready for an Unusual in his personal life? Ashley Moore is not just an ER nurse, she is a heavenly angel on earth, sent to help Dean solve the mystery of the hate crime attacks on his patient community. The Cause is determined to undermine the Unusual community, scare them into a starting a race war, and expose them to their human neighbors. Will Dean be able to juggle the professional challenges of serving his patients, the personal challenges of having an angel in his life, and still find those at the root of these crimes?