2x21 - Joan of Arcadia

Joan and Grace fear the worst when, on the heels of failed attempts to reconnect with Joan, the emotionally fragile Adam goes missing during a hike... Despite Grace's attempts to foster a more comfortable rapport between her friends, Joan is intent on hurting Adam with her rebuffs, which she regrets when it appears that his life may be in danger. Meanwhile, Helen is shocked when a priest tells her that the man who raped her 25 years ago would like her to visit his deathbed so he may apologize. Also, Luke is dismayed and intrigued when he learns that Friedman has been getting stoned.