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.
Cartman reveals who masterminded the attacks of 9/11, while Kyle and Stan search for the real truth; meanwhile Mr. Mackey just wants to know who dropped the deuce in the urinal.
During a fight with Ling in the Dragon Temple, Ang loses his memory after getting struck by falling rocks from the ceiling. She convinces him that he works with a man called the Zodiac Master.
TAPS travels to the historic Birdcage Theatre in Tombstone, Arizona to investigate the wild spirits of the old west.
A teaspoon crisis in the Spleen household leads Rick to petty theft. Meanwhile, Rick's sleep is disturbed by the paperboy, Wayne, who is very punctual, very noisy and has a brain the size of a walnut.
The body of a beheaded woman found in a fraternity house is a mystery to the CSIs. Now they must sort through twisted clues and crime scene after crime scene to find the killer that has them trapped in his own little game.
George wants to be the first person, or monkey in the world to count every star in the sky after Bill tells him that no one has done so. The only problem, though is that George can't stay up at night to count all of them. So he finds a system to keep track of which stars he has counted because, since you can't see stars in the day, he can only count at night. Later on upon returning to the city, George finds that he cannot see the stars even at night because the city has way more light at night than the country.
Thank God Josh Lawson, Alan Brough, Andrew G and Jo Stanley are here.
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.
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.
Lorelai realizes her parents aren't as terrible as she thought. Rory's long-distance relationship proves to be a struggle.
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. The Russian is linked to an old case that Mike Franks worked on. Mike comes out of retirement to put the Russian behind bars.
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.
Byker Grove follows the lives and relationships of a group of young people who are members of a youth club.
When career criminal Wolfgang West gets put away for four years, his wife Cheryl decides it's time for her family to go straight. But can the Wests change the habits of a lifetime?