Joan of Arcadia: Season 2, Episode 22

2 - 22: Something Wicked This Way Comes

Joan is seeing and talking to dead people, including her deceased friend Judith (Sprague Grayden), who tells Joan to prepare for a test. Joan's family and loved ones start to wonder whether the high-schooler is losing it again, but Helen is left to question her own sanity after she too has a ghostly encounter. Meanwhile, Ryan Hunter, the young man who saved Adam's life, is becoming a constant, uncomfortable presence.