The team searches for a man who disappears after a late night ocean dive that includes stolen drugs and three dead bodies. Meanwhile, Danny (Enrique Murciano) and Elena (Roselyn Sanchez) take their relationship to another level. Academy Award winner Martin Landau ("Ed Wood") reprises his role as Frank Malone, Jack's father. Adam Kaufman, Poppy Montgomery's real-life boyfriend, reprises his role as Brian Donovan, the father of Samantha's son, Finn.