While closing a time fold spawned by their victory over Ms. Morgan, Penny encounters a knot in time. The only way she can break it is by releasing a never before seen red time strand. Shortly afterward, Piper Falls is plagued by a series of baffling events, each preceded by the appearance of a mischievous elf-like man from Celtic legend known as the Coch Coblyn. Stumped, the Deputy Sheriff seeks help from his good friend, Darin Kolchak, a paranormal investigator. Compounding the mystery is the discovery of a prehistoric artifact intertwined with Seneca myth and Master Poe's past. The sole survivor from the civilization that created the artifact travels in time to retrieve it and save his people from the cataclysm that destroyed them. Penny and her friends race to unravel the secrets of the artifact and prevent either of the new arrivals from using it to return to power.