Adam Rose

When Booth's son Parker finds a severed corpse finger in a bird's nest while playing with Booth, the team launches an investigation to find the rest of the body. They locate the corpse in Jefferson Memorial Park, and it soon becomes clear that the death was no accident. With the help of a new middle-aged grad student in the lab (guest star Michael Badalucco), the team identifies the victim as a local veterinarian whose penchant for gambling brings a number of suspects into the picture. When the victim's fatal injuries are found to be from a dog, the team uncovers an illegal dog fighting ring and enlists the help of Cesar Millan to help them connect the forensic canine evidence with the killer dog and its owner. Meanwhile, Booth asks Sweets to psychoanalyze his son who he thinks has been traumatized from finding the finger, and Sweets confronts Hodgins about his attitude in the lab.

When Beckett steps on a pressure-sensitive bomb, the team searches for a way to save her while Castle distracts her by talking about their relationship.

After having his heart broken by the babysitter, a young Earl goes to drastic measures to make sure she and her boyfriend pay the ultimate price. Now older and wiser, Earl decides it's time to cross them off his list. When he finds the couple and their live-in, obnoxious, grown son, he believes karma wants him to help the freeloader learn how to make it on his own. But when Earl finds that the lesson in tough love also applies to Randy, he realizes the difficulty in kicking someone out of the nest. Meanwhile, Joy struggles to tell Darnell that she lost his beloved pet turtle. Nadine Velazquez also stars.

Cameron's continuing use of shady tactics on Ava's case brings up memories of why Harvey left the DA's office to work for Jessica. Mike looks back on what cost him his one chance at a degree.

With New Orleans decorated for Halloween, the NCIS team investigates the murder of a Naval Staff Judge Advocate found in a cemetery dressed in a Victorian costume with vampiric puncture wounds on her neck. Meanwhile, the team debates what Halloween night activity and costumes would be best. Paige Turco and Steven Weber guest star.