Spike, a wildcat Shifter and the champion fighter of Shiftertown, is stunned when Myka, the best friend of a dying human woman, announces that Spike has fathered a cub. What's more, the mother is giving the boy to Spike to protect and raise. Myka, who'd been raised by an abusive stepfather, is not sure that a wild fighter named Spike is the best man to bring up the cute little jaguar cub. She goes to Shiftertown to check out Spike, and finds that the man behind the name is a lonely Shifter who's lost most of his family and is a fierce caretaker to those he has left.