After being sidelined by an injury, sharpshooter Liz returns to Troy's boat. An older Creole gentleman has reported that a monster gator--nicknamed T-Rex--has killed a dog and is threatening locals. To catch him, Troy and Liz must board their own pirogue, a rickety wooden contraption ill prepared to handle a large gator. Will their pirogue handle the hunt?
In the 6th season finale, the team investigates the disturbing, unidentifiable remains of a bowler that were found jammed in one of the bowling alley's automatic pinsetters. After hitting a dead end in the case, Booth and Brennan decide to go undercover and join a competitive bowling team in search of answers.
In Miami, ten days before Christmas, a young corrections officer is shot dead with her two-year-old son while sleeping in their bed. Det. Kevin Ruggiero and Sgt. Ervens Ford take the case personally--not only do they consider the victim 24-year-old Ciara Lee as "on our team", but the death of her baby boy hits them emotionally. In this intense manhunt the detectives uncover the intended target, the motive, and the suspected killers, making an arrest two days before Christmas. But a surprise twist at the end leaves them frustrated and determined.
Leslie and the parks team put together a memorial service for a dearly departed friend. Meanwhile, Tom makes a big life decision, while Chris reacts badly to a health problem.
Everyone in the office is unhappy when Chris decides to make some big changes in the parks department -- especially Tom who starts to question his career choices. Leslie is caught off guard when Ben has a meeting with her mom.
When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap places and Penny does something she's regrets.
Russell books a cruise that he thinks is filled with "red hot" ladies but instead it's filled with ladies from the Red Hat society. Meanwhile, Timmy tries to help Jeff and Audrey settle an argument.
Patrick trades Hightower's secret location to Laroche for the four remaining names on his list. The team then sets up a trap to uncover Red John's real informant, leading to a possible face-to-face showdown between Patrick and Red John.
A robber with a bomb attached to him is blown up in front of a convenience store, and CBI soon discovers that there may be connections between this case and Red John and agent Hightower.
Deangelo's new replacement is sought out through a search committee process led by Jim.
Having learned why Oshuwott is having difficulty with Aquajet, Ash helps Oshuwott through special training.
Poppy and her friends blow bubbles in the garden during which Mo proves to be the champion bubble-blower but an inept Zuzu pouts that bubbles are no fun because he is having trouble blowing them. So she takes them to Tiger Island to meet a young tiger named Ravi and help him cheer up with them.
Life is cruel yet again to Teresa when Patty kills herself to get out of the way, revealing that the DEA is hot on her heels.
MXO was the clear target of the Raituhn three. He retrieved treemail for the morning of Day 26, reading it before anyone else. He was shocked to discover that the next challenge was for immunity instead of reward, and he was excited at the prospect of potentially winning the challenge and staying in the game another day.
News of Meredith's dishonesty in the clinical trial comes to light, leading to unanticipated consequences for her and others; Cristina finds herself in a compromising situation, which forces her to decide between her career and her relationship; Owen posts his decision for Chief Resident, and Teddy makes a surprising choice regarding her love life -- and her future.
As Claretha secretly deals with the possibilty of losing her home, the family participates in a talent show. Calvin and Miranda combine their unique talents for the show.
The guys try to keep Jillian from a business function by setting her up on a blind date, but their plan goes awry when she has to be rescued from an Insane Clown Posse concert.