The teams continue racing in the eighth leg.

The project managers learn they must create a three-dimensional display to launch a theme park's new attraction; personal attacks continue to drive the women apart; another celebrity is sent home.

President and COO of Roto-Rooter Rick L. Arquilla goes undercover in his own company and finds himself overwhelmed with emotion.

Having finally enlisted as a marine, Sledge is sent to Camp Elliot to train for battle. The 1st Marine Corps ships out to battle the Japanese who are holding an island off New Britain called Cape Gloucester. The marines fight bravely, but find the jungle to be the greatest enemy. Leckie having survived Camp Gloucester begins to show the effects of combat and is sent to a naval psychiatric hospital.

Dave persuades Gabe to give him one last chance at Rygaard, but a careless error puts Craig on the verge of firing him; Jimmy's desperate decision to snatch a log already marked by the other Collins crew has Joe questioning his ethics; Swamp Man tries to pull a massive log from Lake Pontchartrain and stay ahead of both a fierce storm and a buyer's deadline; Josh and Kevin get their first practice at dropping cargo to the Conner ground crew; as Browning pulls in the last loads from its current job, Jay tells the crew that he has no new work lined up and must send them home.

Shannon travels to NY to join the KISS tour and spend quality time with Gene only to learn he has a prior commitment with a journalist. Gene sticks Shannon with his friend and native New Yorker, Tony, to ensure she doesn't take out her anger on his wallet.

When Robby's teacher becomes suspicious of Ron's behavior, he invites her over for a family dinner. Meanwhile, Ron and the boys set out to create 15 years of photo history.

After determining the serial killer's identity - and some of his likely future targets - the team and the FBI work together to apprehend him while trying to locate and protect the people he's preparing to kill

Tensions escalate dramatically in the White household. A meeting with Gus reveals that Walt is still in danger. Hank gets another call from El Paso to help with more cartel investigations.

Rene has to deal with all kinds of problems when the Rasta Monsta truck is stolen. Ben and Cam are able to make a business deal for their t-shirts with Japanese businessmen at the airport.

Quiz show presented by Victoria Coren in which knowledge will only take you so far, as patience and lateral thinking are also vital.

Princess Bubblegum and Finn create candy zombies

Jake starts to turn lumpy after being bitten.