Jake finds a stranger who is sick with radiation poisoning and he must make a decision whether or not to help him. The hospital’s generator is running out of gas and the residents find that their supplies are also running low.
Peyton spends more time getting to know her newfound brother, Derek. Meanwhile, Lucas gives up on his love for Brooke and Rachel tries to start a romance with Nathan.
The BAU is called to investigate a series of bank robberies after it becomes evident the crimes are not based on money because the robber abuses his victims by forcing them to undress before he leaves the crime scene.
Sun and Jin's lives are put in danger when Sayid tries to locate Jack and the other missing castaways. Sayid also creates a plan in order to get the attention of the "Others" on the beach. Meanwhile, Henry (i.e. Ben) gives Jack an offer that is very tempting in exchange for his cooperation. Lastly, Kate and Sawyer must adjust to harsh conditions that are being forced upon them by "The Others."
The campus newspaper hires Veronica for an undercover expose on the Zeta Theta sorority sisters during rush week to investigate Parker’s rape. Veronica begins to realize though that not everything is as it appears in the sorority house. Logan and Wallace take part in a challenging Sociology class role-playing experiment as prisoner and prison guard, and Keith treks through the desert after escaping from the scene of a crime.
The men are working on tracking down a known terrorist before he can launch an attack. At home, the women must face their own danger when a stranger approaches one of the children.
This episode demonstrates the production processes for balloons, wallpaper, frozen french fries and incandescent light bulbs, and shows how each is made.
After police pull over a driver and arrest him for a concealed weapon, a car crashes into their patrol car with a dead man behind the wheel. The arrested man turns out to be Russian and Homeland Security claim he was working for them.
Sean soon discovers that Monica Wilder doesn't intend to leave him alone. Christian's therapist has an obsessive torment to reveal. And Burt Landau proposes an unusual solution upon learning that Christian and Michelle are having an affair.
Lorelai realizes her parents aren't as terrible as she thought. Rory's long-distance relationship proves to be a struggle.
George is having the time of his life playing with his toy boat in a large pond. After one day of playing, though he comes back the next to see his pond almost empty. George finds out that the water is being held back by a dam that was built by a family of beavers, and they will not let him play in their pond. So George gets the idea to build a dam of his own to make a new pond. He later finds out that water is just as important a part of a beaver's home as the dam.
Denny is attracted to feisty lawyer Bethany Horowitz as they try a case against an HMO, and Alan grows more attracted to Shirley as they defend a homeless man accused of cannibalism. Meanwhile, Coho continues his defense of accused murderer Scott Little.
As the team pulls together and tries to help Matt get used to his new role as quarterback after Jason's injury, Lyla offers her support to Tim.Jason learns about the extent of his injury, and Tami gets a job as the school guidance counselor.
After a mother and her ten-year-old daughter are found raped and butchered in their apartment, Stabler and Beck take in a homeless man who turns out to be Munch's uncle, Andrew. Initially he's their main suspect until they find their way to a new suspect. Unfortunately, when their only evidence against Brent Allen Banks is thrown out in court, Andrew, suffering from mental illness, goes too far trying to do what he is convinced is the right thing.
Logan and Wheeler investigate a firefighter's stabbing death, a crime that took place after the victim prevented a hate crime.
Ang has a rough time as he goes through a series of tests, which every Golden Dragon must take like entering the Temple of Changes.
LAPD Detectives Joe Friday and Frank Smith methodically investigate homicides.
Byker Grove follows the lives and relationships of a group of young people who are members of a youth club.