The Immortal (2000)

Season 1: Episode 13

When the team discovers a preppy boarding school is a source of demonic brainwashing, Goodwin and Sara go undercover to learn the truth and expose the demon agenda. Raphael finds himself bonding in the woods with a misunderstood teen on the run from the school. When Goodwin is co-opted into the demon student plans, Sara is nearly sacrificed before Raphael returns to save the day.