When a Marine known for his practical jokes is found dead on Halloween Eve, the NCIS team discovers that the victim's "good-natured" pranks may have inspired ghoulish retribution. Meanwhile, Ziva tries to adjust to her new role on the team.
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.
Alicia and Will have only 72 hours to find the smoking gun that proves the train company, and not the three engineers, is responsible for the crash, thus securing the widows their pensions the company is holding back. Meanwhile, Jackie and Alicia clash over taking the children to visit their father in prison.
Justin tries to make up with Kristin. Heidi thinks something is wrong with Holly.
It's Halloween at the Beverly Hills Beach Club and Adrianna channels Marilyn Monroe to help her deal with the end of her relationship with Navid. Silver and Kelly continue to have differing opinions about caring for Jackie. Silver is overloaded with school work and caring for her mom, but soon learns that she and Teddy have more in common than a class project. Naomi continues her relationship with Richard, but when she and Jamie share an intimate conversation, her plans to schmooze with the dean of CU come to a screeching halt. Dixon realizes he and Sasha are in two different places in their life and decides to end their relationship, but she ends up delivering life-changing news. Tensions rise between Debbie and Harry when she walks in on Harry and Kelly in his office. Annie and Jasper’s relationship is put to the test when he attempts to convince her to steal a car while shooting a scene for his student film. Liam butts heads with the newest member of the surf team, Ivy.
Since The League has SAMCRO members behind bars, the club must make new alliances in prison to survive. Alcohol, Tobacco and Firearms Agent Stahl uses this imprisonment to test Jax and Clay's relationship.
A new villain named Scorpio shows up in superhero city. Nicky Fury disguises himself as a villain to infiltrate Doom's Headquarters to stop Dr. Doom from using a fractal to control a black hole.
The Major Crime and NSO investigation into the car bomb deaths results in Malik going undercover to track a possible suspect. While he is undercover a Chinese student is discovered murdered. Detectives Lim and Callas get to the bottom of an extortion ring.
A man wants an investment from the sharks to create an extension of his already successful business; a urologist has an unusual business proposal.
Scientist long thought that our solar system consisted of the sun, the planets, and their moons. We soon found that we are far from alone, often coming into contact with asteroids, comets, and other debris.
Alexx Woods and Eric Delko return to help the CSIs stop a deadly outbreak in Miami.
Lucy’s dream comes true when Natsu and Happy take her to their headquarters in Magnolia to meet the rowdy members of Fairy Tail. For her first job, Lucy braves Mt. Hakobe with her new friends to find a missing wizard.
Under Samuel’s guidance, Sylar starts on a path to rediscover his true identity. Hiro helps Emma accept and understand the great possibilities that go along with having an ability. Meanwhile, Peter enlists HRG to help him find a healer who can save Hiro’s life.
After overhearing that Wil Wheaton is entering a trading-card competition, Sheldon decides to enter it himself. Meanwhile, Penny sets up one of her friends on a date with Wolowitz.
Vanessa, hoping to finally win her mother Gabriela’s approval, desperately vies with Blair for the honor of delivering the freshman toast at NYU, but at what price? Dan invites Olivia to meet Rufus and Lily, which leads to all sorts of problems for the new couple. Serena and Nate team up to help Carter Baizen.
Barney tries his best hoping to convince Robin into becoming an American citizen, while Ted and Marshall's road trip takes an unexpected turn for the worst when Marshall invites Lily to come along.
Cattlemen's Steak House (Oklahoma City, OK), Sam LaGrassa's (Boston, MA), Nickel Diner (Los Angeles, CA) Guy Fieri checks out some joints where things are still done the old-fashioned way. In Oklahoma City, a steak house that's been serving the same steaks, desserts and even salad dressing for more than 80 years; In Los Angeles, a 1940s diner brought back to life by a chef doing mac and cheese, fried catfish, and donuts ... her way; And in Boston, three brothers carry on 40-year-old family tradition - making clam chowder like Dad - and chipotle/pastrami sandwiches.
Castle has a new book agent, Paula Haas, but she talks with him when he has gotten an opportunity that may change his career. The downside is that taking the opportunity would mean the end of his relationship with Beckett. Meanwhile, an unidentified woman is found dead in a manhole.