Lucas' novel receives interest from a suprising person, as does Mouth as he meets his new intern. Jamie begins to develop a crush on Sam and her rebellious ways, while someone becomes enamored with Brooke. Meanwhile, Haley and Nathan discuss his return to baskeball as his comeback begins to look more like a reality.
Trapped, Nathan and Tracy must fight to save their lives against Suresh, who has changed dramatically. Elle returns with shocking news for Claire and her family. Meanwhile, Angela tries to convince Sylar to save Peter; Daphne is ordered to kill Matt or she will be killed herself; and Hiro questions Usutu's advice.
MUFON - the Mutual UFO Network - investigate a UFO sighting, and possible alien abduction, using the tools of science, psychology and law enforcement.
Henry Spivey, an efficiency expert, lives a typical suburban life, right down to the wife, two kids, dog, and minivan. In contrast, Edward Albright is a lethal, multilingual operative. It would seem the two men have nothing in common -- except for the fact that they inhabit the same body. When each personality finds himself out of his element, things go awry.—Anonymous
Brent thinks the self-serve option at Corner Gas will make his life easier, until he discovers his customers are enjoying it a little too much. On the other hand, Lacey’s Ruby buffet has her customers working overtime. Wanda’s quest to reclaim her title as Rumour Queen proves disastrous for Karen and Emma, while Hank’s old laptop becomes a hot potato when he tries to sell it to either Oscar or Davis.
Marcus du Sautoy examines unsolved problems that confronted 20th-century mathematicians.
Desperate to regain her memory, Sam opts to join a clinical trial and starts taking pills for her memory. Sam's memories start coming back, but she doesn't like what she learns about her former self. Elsewhere, someone confuses Dena and Andrea as being a gay couple, which frustrates Andrea and sends her on the hunt to find someone hotter than Dena.
Harry vows revenge by taking down the head of Russia's intelligence service in Britain with the help of Lucas North. Lucas's loyalties, however, are secretly no longer with MI5 and he exploits Harry's trust to help a Russian submarine destroy Britain's communications system, causing financial and social chaos.
The team steps in when a British soldier is kidnapped by Al-Qaeda. Meanwhile, an old protégé of Harry's returns to the fold after eight years in a Russian prison - but whose side is he really on?
After enrolling in Wiz Tech, Alex realizes her new crush, Ronald, has kidnapped her former crush, Dean. Max and Professor Crumbs join forces to become a dynamic duo, and Justin and Alex must team up to save Wiz Tech from falling into the hands of Ronald and his evil father.
Wiz Tech is forced to close, and the Russo's must take in Professor Crumbs and fellow student Ronald, who quickly develops a magical connection with Alex. Max teaches Professor Crumbs how to assimilate into the mortal world and Justin saves the day by finding the solution to reopen Wiz Tech.
The team re-opens the 1951 case of a marine who went missing and never reported for duty after his shore leave.
After scoring a first class seat next to Jamie-Lynn Sigler, Turtle makes a mile-high claim the guys just don't buy. While Ari is distracted, Josh Weinstein courts Vince.
A nuclear scientist insists on making a deal with the team before revealing information about an imminent terrorist attack on a major U.S. city; Kim, Molly and Tiffy are asked to work under cover with Jonas.
Driven by a hidden agenda, Dave convinces Susan to throw Mrs. McCluskey a surprise party for her 70th birthday. Jackson wants to take his relationship with Susan to the next level. Gabrielle's concerned she might be pregnant. Tom tells Lynette he's sold the pizzeria. A startling reason for the bond between Bree and Katherine is revealed. And finally, an outraged Mrs. McCluskey has the entire neighborhood questioning her sanity.
In order to distract Hank from his heartbreak, Ashby arranges a sex session with popular, yet incredibly annoying, celebrity chef, Chloe Metz. Charlie takes on a new client who’s eager to land the lead in a porn film called Vaginatown. Charlie meets with the film’s director and secures her the part, but only after investing $100,000 of his own savings.
The office scrambles without Don; Betty learns some disconcerting news.
When Arthur Clennam returns to England after many years abroad, his curiosity is piqued by the presence in his mother's house of a young seamstress, Amy Dorrit. The cold and forbidding Mrs Clennam isn't usually given to charity, so why has she made an exception in taking on Amy? Is she making reparations for a past wrongdoing? Does it have anything to do with Arthur's father's dying words and the pocket watch with its mysterious inscription, 'do not forget'?