A gun-wielding man from the waiting room at the Princeton-Plainsboro clinic takes House, Thirteen and several patients from the waiting room hostage in Cuddy's office. The man claims to be sick with a long undiagnosed illness and demands medical attention from the best doctor in the hospital, threatening to kill any hostages necessary along the way.
According to the laws of physics we can never travel faster than the speed of light...or can we? Light speed allows us to see things instantly here on Earth, and shows us the entire history of the universe going back nearly 14 billion years. Learn all about light speed, the ultimate constant in the universe and discover ways scientists envision breaking the "light barrier" which may be the only way the star travel of our imaginations ever comes to reality.
Officers in the Barn investigate a woman's disappearance and the arrival of a large drug shipment; lives change forever.
Jack and Samantha head to Los Angeles to look into the disappearance of a man who vanished after attending a funeral.
Mike travels to Yakama, Washington to harvest hops, the main ingredient in beer. From there Mike goes to the Hudson Valley where he turns animal hides in to paper.
Abby and her new friends discover that supplies won't be shared equally in the new world. A gang of armed thugs have laid claim to all the shops in the area leaving them short of food and water. Greg receives an attractive offer which could give him a comfortable life, but taking it would mean turning his back on the others.
Harry is imprisoned and accused by MI5 of being the Russian mole. Lucas disappears to Moscow in a bid to gather intelligence and get to the bottom of Harry's arrest, whilst the rest of the team tries to prove his innocence on the Grid. But with so much evidence against him and a traitor among the team, things aren't looking good for Harry.
The eclipse plays havoc with the heroes' powers. Arthur orders Elle and Sylar to bring in Claire. Hiro, Ando, and Matt follow Daphne to her hometown to learn what hold Arthur has on her, and Peter and Nathan travel to the Haitian's hometown to recruit him for the war with Pinehearst.
When Oscar and Emma invite Lacey to their hot tub party, she is excited to finally be included until she finds out that she's the only person to accept; Davis introduces a new mascot to promote DRPD; Hank suddenly becomes homeless, leaving Brent to wonder where he's spending his evenings.
Unusual forensic experts helped solve the 2004 murder of Charlene Hummert: forensic linguists, soil analysts, photometrics, and computer recovery. Even without being allowed to know the man had confessed to the murder, the jury convicted him on the evidence.
Samantha invites Owen to dinner to meet her parents; Dena worries that Chase isn't spending enough time with her; Todd asks Samantha to stay at her parents' house while his mother is in town.
Derek and Andy were drawn to their home by the old-world charm, but now that they have two kids, and are looking to have more, their house doesn't fit their family. That's where Designer Hilary and Realtor David come in. Hilary and her team will reconfigure the space so it will fit the family now and in the future. David will search for home with both the character and charm they love, and the additional space they need. After all the work is finished, Derek and Andy will have a decision to make. Will they love their house again? Or will they list it?
A nasty rumor threatens to end Lauren and Audrina's friendship and Heidi realizes Spencer's been withholding information from her.
Lebano throws a wild party as the gang's confidence continues to grow, and Dandy decides to expand further into Terrible's territory - but his plan has harrowing consequences for two of his cohorts. Meanwhile, Freddo is drawn to his brother's girlfriend Roberta.
With the Earth devastated under the control of the Trickster, Sarah Jane and Luke go back to 1951 and change things back to how they were- which means that Sarah Jane's parents must die. Will she make that sacrifice?
Shirley's quiet Thanksgiving with Carl becomes considerably louder when she opens her door to other members of the firm, including Alan, Denny, Jerry, Katie and emotionally unstable partner Edwin Poole, who brings his 6-year-old foster son.
The gang learns a new way to get their dates to sleep with them after Ted walks in on Robin's date sitting naked on the couch.
Brooke is shocked to find out that Samantha is in her room with a boy named Jack. Along with that, Julian asks her to make some clothes for the movie. Peyton tries to get Mia to focus on her follow-up album. Lucas is excited when he travels to Hollywood to meet the director of the movie. Meanwhile, Nathan gets the chance for a pro-basketball try-out. Haley takes Jamie to his school's talent show and Millicent confronts Mouth about Gigi.