A mysterious man saves a lieutenant's life and disappears from the scene, but the NCIS team soon discover forensic evidence that suggests he's a soldier who was captured in Afghanistan and never found.moreless
In part one of the two-part crossover event, Brennan and the team work to identify a 200-year-old headless body and its relation to a recent murder victim. New FBI Agent Abbie Mills appears at the Jeffersonian with Ichabod Crane in tow, and both teams must find a way to work together as Brennan's science and logic clashes with Mills and Crane's belief in the mystical. Elsewhere, Booth and Brennan compete for best Halloween prank against each other.moreless
While Kit tries to reunite with Grace, Mary Eunice discovers that a dark force has invaded Briarcliff.
As the date of the vow renewal approaches, Bridget decides she needs to reveal her true identity to Andrew. Meanwhile, with Bodaway Macawi closing in on Bridget, Agent Machado is forced off the case, and Henry struggles with the decision to tell Bridget the truth about Siobhan.moreless
Bridget decides that the best option to protest her safety is to testify against Bodaway Macawi. Meanwhile, Agent Machado gets suspended from the FBI. With Henry's patience for Siobhan's plan growing thin, tells her she needs to give up her revenge plot or they cannot be together.moreless
After someone attempts to kill Bridget, Agent Machado sets out to find the person responsible. Henry accuses Siobhan of ordering the hit on Bridget, but Bridget suspects that Olivia may be the guilty party. Meanwhile, Andrew admits that he asked Malcolm to leave town, and Juliet turns up missing.moreless
Bridget is unable to get in touch with Malcolm and starts to worry that something has happened to him. As she tries to track him down, Bridget visits the hotel where Malcolm was staying and finds security footage revealing that Andrew was the last person to see Malcolm before he went missing. Meanwhile, Juliet learns that someone in her family played a role in Tessa's attack, and Siobhan admits to Henry the reason that she faked her own death.moreless
Bridget visits the placesSiobhan went to before she disappeared and findsSiobhan's secret office. Olivia blackmails Henry in introducing her to Gemma's rich father.
Catherine, Juliet's mother, shows up in New York, and her presence strains Andrew and Bridget's relationship. Bridget uncovers a man from Siobhan's past who she thinks might be a valuable source of information about her sister. Meanwhile, Henry finds a lead that makes Agent Machado believe he is closing in on Bridget.moreless