Travis Roan and his dog, Bear, are hunters: They travel the world pursuing evildoers in order to bring them to justice. They have now come to Kansas on the trail of Rudolph Bormann, a Nazi doctor and concentration camp administrator who snuck into the United States under the name Rudy Goodman in the 1950s. Travis quickly learns that Goodman has powerful friends who will go to any length to protect the Nazi; what he doesn't know that is that Goodman has furtively continued his diabolical work.

Claire Kovalik is days away from being unemployed—made obsolete—when her beacon repair crew picks up a strange distress signal. With nothing to lose and no desire to return to Earth, Claire and her team decide to investigate.

One Christmas Eve in a small hollow in Boone County, West Virginia, struggling songwriter Jesse Walker witnesses a strange spectacle: seven devilish figures chasing a man in a red suit toward a sleigh and eight reindeer. When the reindeer leap skyward, taking the sleigh, devil men, and Santa into the clouds, screams follow. Moments later, a large sack plummets back to earth, a magical sack that thrusts the down-on-his-luck singer into the clutches of the terrifying Yule Lord, Krampus.

Connecticut, 1666. An ancient spirit awakens in a dark wood. The wildfolk call him Father, slayer, protector. The colonists call him Slewfoot, demon, devil. To Abitha, a recently widowed outcast, alone and vulnerable in her pious village, he is the only one she can turn to for help. Together, they ignite a battle between pagan and Puritan - one that threatens to destroy the entire village, leaving nothing but ashes and bloodshed in their wake.

St. Vincent's Orphanage for Boys. Turn of the century, in a remote valley in Pennsylvania. Here, under the watchful eyes of several priests, thirty boys work, learn, and worship. Peter Barlow, orphaned as a child by a gruesome murder, has made a new life here. As he approaches adulthood, he has friends, a future...a family. Then, late one stormy night, a group of men arrive at their door, one of whom is badly wounded, occult symbols carved into his flesh. His death releases an ancient evil that spreads like sickness, infecting St. Vincent's and the children within.