Danika Karson, recently promoted team leader within the Supernatural Prohibition, Extermination, and Arrest Regiment (SPEAR), is tasked with containing a new pack of werewolves who have entered Angbec and staked their claim with violence and brutality. Their ferocious rampage not only endangers humans but falsely implicates Wensleydale Gordan, dear friend and alpha of the smaller, more vulnerable Dire Wolf pack.

With such powerful adversaries, Danika must again enlist the help of Rayne: girlfriend, fellow agent, and powerful vampire. Unfortunately, Rayne has more personal matters on her mind. The full moon approaches, and with it, supernatural compulsions that threaten to consume Rayne and Danika in a wave of passion and blood.

Wolves fight for supremacy, Rayne struggles for control, and Danika wants nothing more than to save them all. But when the full moon rises, can she win against the moon fever?