When a member of a local brotherhood dies during an initiation ritual, Shawn and Gus enter a world of secret handshakes and ancient traditions, all presided over by Lassiter's father-in-law (guest star Philip Baker Hall).
A radio shock jock (Christine Tucci) is accused of murdering her birth mother shortly after meeting her for the first time. Meanwhile, Jesse's overbearing mom (Kathleen Noone) visits and makes a surprising announcement.
Mark learns that a hospital maintenance man is actually an escaped convict who was sentenced to prison 13 years ago for the murder of his wife but Mark believes he is innocent and sets out to prove it.
After being forced into retirement, former detective Jeff Jackson returns to a quiet life on Martha's Vineyard. Quiet, at least, until a body washes up and he's drawn back into crime solving. Stars Jesse Metcalfe, Sarah Lind.