Michael Grant Terry

The dismembered body of a roller derby skater means Angela goes undercover at the rink to find more clues to the woman's murder. Elsewhere, Cam worries over the sheer number of doctor appointments Booth is going to, and presses him for details.

Booth and Brennan dust off their dancing shoes when they go undercover as contestants in a ballroom dancing competition while investigating the murder of a dancer murdered just days before her audition for the show.

Brennan, intrigued by Phil Jackson's management style, pulls all her interns together as a team for a project worthy of the basketball coach's philosophy. She charges them with identifying remains that have been determined unidentifiable. For the team, however, it turns out that naming the bodies may be the easiest part of their task when one of them is from 9/11 and they must decide if he is a victim or perpetrator.

Nick and Hank work with a detective to investigate a series of child abductions tied to the legend of the ghostly La Llorona, and Nick brings Juliette in to fill in as the precinct's Spanish translator. Meanwhile, Monroe has some fun of his own on Halloween.

Nick and Hank investigate a murdered high school student who was killed because of their involvement in an academic decathlon. Meanwhile, Monroe gets a visitor at the spice shop and Renard must deal with his obsession.

Christopher Pelant's appeal of his verdict goes to trial, and Booth and Brennan do everything they can to keep him behind bars. But a new murder with ties to Pelant that the team hopes will put him permanently in prison takes a nasty twist that puts Brennan's freedom in jeopardy.

Castle's partnership with the police, courtesy of Castle's longtime friendship with the Mayor, is threatened when a murdered woman is found in a car from the Mayor's motor pool. The ensuing scandal could bring down Mayor Weldon's administration and with it Castle's partnership with Beckett.

The team investigates what appears to be a murder scene at a national monument, but the only clue left is a coded message made of human blood that will be the beginning of a scavenger hunt for the solution, courtesy of a new, technologically-proficient foe. Elsewhere, Booth and Brennan look for a new home.

The body of a woman found buried under a paintball field yields more questions than answers as the investigation into her death reveals even she didn't know who she was. On the domestic side, Booth and Brennan adjust to sharing space with each other … and her growing stomach.

The family of a prominent minister could find itself in big trouble when they withhold information from Major Crimes in the hopes of keeping the pastor's dark secret from church members.
Meanwhile, Brenda's efforts to keep the Turell Baylor lawsuit to herself end when the entire team, except for Gabriel, is subpoenaed by the plaintiff's lawyer who disguises himself as a process server. The fact that Gabriel was the only one not subpoenaed causes tension and infighting which could get in the way of solving the case.

In the fourth season finale, a murdered body is discovered at a popular nightclub called "The Lab." The Jeffersonian team takes on unusual roles, including the nightclub staff and law enforcement, in this dream-world episode.