Joan of Arcadia - Season 2 Episode 22 -

Joan's 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.