When a Marine known for his love of practical jokes is found dead on Halloween, the NCIS team is called in to investigate, and they soon learn that his jokes may have been the reason why someone killed him.

It's Halloween and Adrianna channels Marilyn Monroe to help deal with her broken relationship with Navid. Silver and Kelly take different stances as to how to care for their mother. Naomi continues in her relationship with Richard, but later shares an intimate moment with Jamie. Dixon begins to realize that Sasha is in a different place in life than he is and decides to end their relationship. Tensions arise between Debbie and Harry; Annie and Jasper's relationship is tested; and Liam faces off with the newest member of the surf team.

Two teams search for buried treasure as they head to the beach. One team goes home for an emotional reunions with their families, while the other team time making the best of their time on campus alone.

A man goes to the Sharks for an investment in his already successful business; and a urologist makes an unusual business proposal.

On her last day at work Julie quizzes psychic tea lady Bonnie about the troubling prediction she'd made months earlier. Bonnie still senses a divorce but now she's sensing something more. It has to do with Julie's husband Dave.

Though they may look like dragons and inspire stories of man-eating, fire-spitting monsters with long claws, razor-sharp teeth and muscular, whip-like tails, these creatures are actually monitor lizards, the largest lizards to walk the planet. With their acute intelligence - including the ability to plan - these lizards are a very different kind of reptile, blurring the line between reptiles and mammals. And even though these bizarre reptiles haven't changed all that much since the dinosaurs, they are a successful species, versatile at adapting to all kinds of settings. "Lizard Kings" looks at what makes these tongued reptiles so similar to mammals and what has allowed them to become such unique survivors. But while the creatures can find their way around many different habitats, finding them is no easy task. Natural loners, and always on guard, they sense anything or anyone from hundreds of feet away. NOVA follows expert lizard hunter Dr. Eric Pianka as he tracks the elusive creatures through Australia's heartland with cutting-edge "lizard cam" technology for an unparalleled close encounter with these versatile "living dragons".

Mike performs tests on endangered alligator snapping turtles in Arkansas and later in the show he recycles toilets in San Francisco.

Erica receives a special gift from Dr. Tom - a do-over day.

When a United States citizen of North Korean descent is murdered, the secrets to classified software are thought to be lost until NCIS uncovers a suspect from Director Vance's past.

On alien planets it rains from the sky as scalding iron. On distant moons, even at hundreds of degrees below zero, they slosh around in lakes of methane. They can cover planets in oceans of electrified hydrogen metal. They churn in dead stars and even our planet. They're so rare in the universe, they almost don't exist, but these are the liquids of our Liquid Universe.

Ella and Riley head to the Anton V photo shoot where they meet the photographer, who attempts to coax Riley to do a topless shoot. Meanwhile, Jonah is invited by a producer's development executive for drinks, and Violet makes another play to get Auggie.

Tonight there is a very special tribute to Michael Jackson including all sixteen professional dancers. In the results show of fifth week another couple will be going home.

Kristin feels she has Justin tamed. While at an event Holly control.

Now that The League has SAMCRO members in prison, the club must create new alliances while behind bars to survive.

A John Doe is found shot to death in a drainage tunnel; clues point toward the victim having been searching for someone; Alex starts to see his own story reflected in the victim's.

Will and Alicia only have 72 hours to find the evidence that will prove the train company is responsible for the crash, and not the engineers. If they manage to prove it, the widows get their pensions back. Meanwhile, Jackie and Alicia clash when taking the kids to visit their dad, who's in prison.

Martha Stewart, Ludacris

Rita argues with the new neighbor Chuck because he plays loud music at all hours of the night. When Patty learns that Chuck is a bass player, she invites him to join the band, but to an unsatisfactory result.

Coming Soon...

Jon Hamm, Freestyle Motocross Athletes, Cobra Starship featuring Estelle

Vanessa suspects foul play after Archie suddenly dies. Connie, Ric and Faye are dismissed from the hospital so that there can be a full police inquiry. Mark is able to get Chantelle to confess to Maddy's murder.