A rash of startling teen suicides in a small Wyoming town is the focus of a BAU investigation.
When a beautiful star quarterback of the Lingerie Football League is found murdered in the locker room hot tub with traces of lidocaine in her system, the CSIs are called in to find out who wanted her dead.
Riggins puts Tami in a tough spot; Julie asks a friend to dinner; Vince’s mom has a health crisis; Luke’s parents look for ways to help him; and Eric is urged to change his coaching style.
Michael finds out about Torquay's micro climate, goes salmon fishing on the Dart estuary and spends some of Totnes' new local currency.
Best friends Shin Young and Boo Ki are having trouble with their love lives. Da Jung, a former classmate, joins them as they try to conquer single-hood.
After her breakup with Jeff, Jules turns to Bobby for some cheering up. But when a bottle of wine leads to a passionate kiss, will they agree it was only a casual meaningless kiss? Meanwhile, Laurie discovers a thing that both Jules and Grayson have in common, while Travis plans with Kylie don't go as planned.
Betty invites Hilda and Justin to stay for dinner after Justin's acting class audition, but they decline. Living alone in her, Betty realizes that she misses Matt and fears that if something happened to her, no one would know. Though Amanda and Marc live in the same building, they do not want to walk to work with her, increasing her loneliness. Meanwhile, Marc is feeling tension working for both Daniel and Wilhelmina, and sees a career opportunity when he hears the vacant Senior Fashion Editor position will be filled.
The team receives a tip of a drug use at a local motel. When they search the premises they find crack and cocaine. Later, the team has to make two other crack-related stops. Steven teaches martial arts to a group of young people the next day and hopes the discipline and self-confidence they find in the martial arts will help them stay away from the drugs.
The team responds to a store manager in need of answers. Roger, the night manager at Big Timer's Sound Shop, is so distraught over events taking place in the basement of his store that he's ready to quit his job. With a newborn baby at home, Roger's wife convinces him he must stick it out, so Roger turns to the "Paranormal Cops" for help. The team soon discovers the store used to be a notorious hangout and gambling hall frequented by nefarious figures and host to countless crimes.
Gus Casely-Hayford explores the history of Great Zimbabwe, a symbol of African genius which gives an insight into the empires which once dominated southern Africa.
Rikki receives counterfeit money at the cafe and is held captive by criminals on a boat. Bella and Cleo are forced to reveal the trio's secret to Will so they can rescue Rikki together.
In the post-apocalyptic world, man's mysterious relics meet very different fates, including those in a site in the U.S. called the "Crypt of Civilization". Other crypts, safes, and time capsules are exposed to new threats. An abandoned Mental Hospital in Connecticut offers clues regarding man's ability to preserve records. Can the military training given to Marine Corps dogs help them succeed in the wild?
Following the murder of Mayor Larry Bowman, Dusty, the coroner who was a very very close personal friend, and the police investigate. In the police's mind, everyone, including themselves, are suspects. They question among others the Mayor's wife Marilyn Bowman, who reacts in her usual manner. Being breaking news, the local news team arrive on the scene, however without their regular camera person Shaye, and their regular on-air reporter Corrinda Gablechuck, both of who are indisposed. Filling in for Corrinda is Heather Weather, the on-air weather girl. This situation brings to the forefront Heather's professional intentions and her professional limitations. Approaching the funeral, Marnie tries to talk Ricky into attending, although Ricky doesn't think the Mayor would have wanted him there because of their past history. Eventually, the police think they've found the murderer with blood on his hands. But Death has another Shuckton resident as his next target.
A case of guilty conscience plagues the med school when a student cheats on an exam and Dr. Cox takes it out on the entire class. Meanwhile, Denise makes a startling admission of her own.
Michael samples local Cheddar strawberries, explores Cheddar Gorge and the famous caves, and visits one of the oldest piers in the country at Weston Super Mare.
Neal must infiltrate a company of corrupt Wall Street brokers to preserve his deal with the FBI. When Peter is forced to go undercover alongside him, a discovery is made that could change their partnership forever.
Following a visit to the doctor, the reality that he was unknowingly penetrated hits home for Sean. Discounting Steve as the culprit confirms Jemima's claims; Alice is the perpetrator. However when Sean attempts to make her accountable, she denies responsibility. When Nat learns of the incident and follows it up with Sean, she urges him to continue to push Alice for the truth. Once again Alice fails to relent which sees Sean threatening blackmail unless she admits to the attack. Tess's regular client, Turnball, returns and she finds herself getting involved in his family problems. Tess seems to be falling into the same routine she had with Daniel; investing unnecessary energy in a no-win situation.
Ted romances a beautiful German executive who can't speak a word of English. It doesn't matter Veridian is developing a translation device for her company, enabling the two to communicate. The problem is, the voice of the device is Phil's, which ruins the mood for Ted.