Poachers often operate under cover of darkness, and so do the wardens. Wardens Beals and Martignoni are on the hunt for a serial poacher illegally killing pregnant does. And on Halloween night, it’s a deadly serious game of trick or treat as a special operations unit apprehends a suspect caught with a stash of illegal deer meat and marijuana. Then, in an upscale community of Grass Valley, residents have discovered stray arrows outside their homes, and the wardens rush in hoping to avert an accidental death.