Nate Fisher returns home for the holidays to the shattering news of his father’s death.

When Trip suffers a catastrophic injury, his only hope for survival is a transplant from a “mimetic symbiont” which Phlox grows from one of his exotic creatures.

The Charmed Ones help out Leo’s mentor, Gideon, when he wants to find out who cast the spell of darkness over a magic school and conjured the headless horseman who…