Marcus du Sautoy looks at the contributions of the great Greek mathematicians.
Peter travels to the future and adopts a dangerous ability in order to try to save the world. Meanwhile, Mohinder struggles with his continuing evolution from the formula, and Hiro and Ando re-unite with an old enemy.
A 10-year-old boy is found dead on his bedroom floor. Dr. Norma Jean Farley, one of Dr. G's pathology fellows, volunteers for the case. The boy had been taking Ritalin for ADHD and he had asthma, but Dr. Farley must also rule out child abuse. When the cause of death proves elusive, Dr. Farley seeks Dr. G's help, and both doctors are shocked when the tragic cause of death is revealed. A 10-year-old girl is struck by lightning, and is subsequently left brain dead with no hope for recovery. The family makes the decision to donate their daughter's organs. Dr. G must decide if she can perform a successful investigation without the girl's vital organs.
British explorer Bruce Parry journeys the Amazon across South America, interacting with tribes, locals, foreign companies, drug traffickers, rebels, and military forces as an anthropological observer.
Delko's deepest secrets are threatened to be exposed when the daughter of his therapist is killed. The team rushes to find the killer before this happens.
Justin and Max steal Alex's diary only to have it stolen again by Gigi, Alex's arch nemesis. In an attempt to recover the diary, the brothers accidentally place Gigi inside the book and into Alex's secret fairy-tale princess world.
The 1991 death of an inner-city schoolteacher is reinvestigated when new evidence indicates she may have been murdered instead of dying accidentally during a carjacking that got out of control.
Bill wins over Adele's church group with his vivid recollections from the Civil War; Sam reveals his feelings to Sookie; Jason gives vampire blood another shot with the help of Lafayette, and hurts Tara in the process.
Much to the chagrin of her mother and siblings, Kitty decides to publish a tell-all memoir about Robert's unsuccessful Presidential race and the trials and tribulations of the Walker family. Meanwhile, Justin slows his relationship with Rebecca to a near stand still.
When Peter re-discovers his love for the painfully annoying yet seductively catchy tune "Surfin' Bird," Brian and Stewie decide to take matters into their own hands to ensure that the song will never be heard again! On the verge of tears, Peter goes to every record store in Quahog to track down his beloved jingle, and he runs into a familiar face and ends up hanging out with Jesus Christ.
In part one of the eighth season premiere, Degrassi welcomes a new group of students as they adjust to high school life. Mia believes that her junior year will begin on a positive note when she is scouted by a top model agency and befriends a new student. But trouble is in paradise when Mia learns the dark side of the modeling world. Meanwhile Degrassi graduates Emma, Manny and Liberty adjust to the transition of High School to College. Though the girls get involved in a mishap when a mysterious roommate threatens to tear them apart.
When a local paper plans to run a story about Strickland Propane dumping old propane tanks into the river, Hank suggests that the company go green. Dale, in an attempt to impress the ladies, organizes an Earth benefit concert.
Unaware of Jackson's whereabouts, Susan goes to a local bar suspecting that he might be with Mike however, she soon lands herself in-trouble; meanwhile, after spending money that did not belong to her, Gabrielle attempts to get Carlos to get a job at the local country club as it pays better. Bree promotes her cook book on a radio show.
Betty visits her father; Paul's girlfriend tries to convince him to prioritize his duties; Pete's mother disapproves of his and Trudy's idea.
Debra and the homicide unit, Dexter and ADA Miguel Prado are all searching for the same serial killer, who is responsible for the death of Prado's younger brother. Meanwhile at home, Dexter is faced with a decision to make concerning Rita and her kid
Hank finds himself in jail after assaulting a mouthy police officer. Karen, still upset at Hank for his accident at the party, refuses to bail him out. Meanwhile, Charlie gets fired after his former assistant, Dani, plays the agency president a montage of Charlie’s self-pleasuring office sessions.
Making the right call on a crucial career move calls for Vince and the guys to search for clarity and guidance in the arid expanse of Joshua Tree National Park. Meanwhile, Lloyd assists Ari in his time of need.
The team follows a scientist who may have been targeted by terrorists, hoping to link those same terrorists to a presidential assassination plot.
Bart lands himself in trouble when he steals a mobile phone from Denis Leary and subsequently uses it to land the actor a comical film role. The troublemaker then leads his family to the ancient ruins of Machu Picchu after Marge confiscates the device and decides to use its GPS technology to track her son.