In the first leg of the episode, the teams make their way from Capos, Costa Rica to Arizona. A Detour requires them to choose between Brush or Barrel, in which they must either paint cart wheels or load sugarcane and then transport it six miles. Later, one member of each team does a Roadblock that requries them to do fifty laps around a track in a supercart. The teams then travel 32 miles to the Pit Stop, Fort McDowell Adventures. One team arrives last, but is not eliminated.

The teams continue in the second leg and receive a clue directing them to the Fighter Combat International at Arizona's Gateway Airport. A Roadblock requires one member of each team to fly a stunt team. The teams make a stop at the Grand Canyon before traveling to Geln Canyon Park and choosing between two Detour options --- Bearing or Bailing. All but one team chooses Bailing, in which they bail water out of a boat, while the other chooses Bearing, requiring them to find cards navigating via compass coordinates. The teams race for the Pit Stop at Lake Powell, Antelope Point and one is eliminated.

Booth asks Brennan to help locate and identify the remains of a six-year-old boy, Charlie, who went missing from a local park.

Rory is pleasantly surprised when her old flame Jess appears at her grandparents' house and reveals an amazing development in his life. Rory agrees to go to dinner with Jess, and when Logan unexpectedly joins them, an ugly confrontation develops, leaving both Rory and Logan to face the choices they have made. Emily is concerned about Rory's sudden evasiveness and tries to exert some parental discipline. Meanwhile, Luke agrees to sponsor a local girls' soccer team and Lorelai channels all her concerns about Rory into caring for her dog, Paul Anka.

A Princeton student who is graduating suffers a seizure while partying at a frat house. House's parents also drop by to see their son.

Earl attempts to help Scott get over his preoccupation with golf, an obsession caused when he and Randy started fixing Scott's golf game to get free beer. But after becoming so thoroughly entangled in Scott's personal life that he drives Randy away, Earl realizes that he may be the one with the obsession.

When bodies of two hired assassins are delivered to the NCIS team, Ziva & Tony go undercover assuming the victim's identities in order to find the person who hired the assassins for their mission. While working on the case, Ziva & Tony spend some quality time in a luxury hotel and the attraction between them arises. Gibbs discovers that his team is not the only one working on the case.

Caroline informs the remaining six contestants that the duos are gone from here on out. Now, they will all be competing against each other by themselves. Aside from this change in the game, one contestant will shock everyone with their new look. Meanwhile, two other contestants will end up having a fight between each other.

To teach Jim the value of communication, Cheryl doesn't speak to him for three days.

One of the most daring clandestine operations of World War II was the 1944 sinking of the Norwegian ferry Hydro with its cargo of "heavy water" destined for the Nazis' secret atomic bomb project. Although the mission was declared a success, no one ever established if the special shipment was actually on board. In this program, NOVA descends 1,300 feet beneath a remote Norwegian lake to find the answer.

Michael and Jan try to nail down a potential new client, Christian, by taking him out to Chili's. Meanwhile, Jim finds a semi-autobiographical script that Michael has written called Threat Level: Midnight, and he and the rest of the Dunder Mifflin workers have a great time acting it out.

A gas & power worker is killed when insects burrow themselves into his brain and consume it. Sam and Dean research the history of the new housing development and find that it has been constructed on former Indian land cursed against the white man. Now, it's up to the brothers to get the people out before they are killed by swarms of bees, locusts, spiders, and beetles.

Mike first goes to the Chimney Safety Institute of America in Plainfield, IN and learns how to be a certified chimney sweeper.



He then goes to Ontario, Canada to salvage underwater logs, which are then used to make furniture.



Finally, Mike visits a scrap metal recycler in St. Louis, MO and learns how to separate different metals and operate some big machines.

Denny is called to defend a man who raped and killed a 13-year-old girl, but decides he'd rather go to jail than spend his days defending murderers. Meanwhile, Alan must face his fear of clowns and Shirley dumps a bizarre bestiality case on Denise.

A book is released about Mackenzie, and when confidential information is exposed, suspicions begin to arise. Warren Keaton begins his confirmation hearings, but his confirmation becomes at risk when events from his past are revealed. Meanwhile, Horace worries about his bad grades while Rebecca and her new boyfriend get closer.

After the bones of a boy who disappeared in 1978 are found at a playground, Stabler, still visibly recovering from a recent gunshot wound, teams up with Vizcarrando to determine the boy's identity, which leads them to a cold case involving four missing Puerto Rican boys that were never found.

Sean has feelings for Nikki Moretti. Quentin goes after Julia and she welcomes his attention. Christian has a down-syndrome patient who wants to look like the rest of his family. Christian meets with his birth mother again.

Nehemiah takes on all the responsibility for editing but ends up spending some time in a jail cell.

TONIGHT: Republican Senator from Arizona, John McCain!

TONIGHT: Stephen Colbert welcomes CourtTV anchor, Catherine Crier!

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