Intro to Knots is the tenth episode of the fourth season of the NBC sitcom Community, which originally aired on April , . The episode was written by Andy Bobrow and directed by Tristram Shapeero. The episode features the study group gathering around for Christmas at Jeff's apartment as they try to convince their history professor to change their grade. Malcolm McDowell guest-stars as Professor Cornwallis.
Leslie works to get rid of outdated laws from the original town charter. April and Ron receive management training from Chris. Ben finds himself in a bidding war against Ann to win a present for Leslie.
When Leslie finds out Jerry is retiring, she struggles with the proper way to commemorate the occasion. Chris and Ann prepare to have a baby together. Tom worries he will become the office punching bag once Jerry leaves.
In 2011 Maksim Gelman went on a brutal killing spree in New York City that left four people dead and four wounded. It began when he killed his stepfather by stabbing him 55 times, and ended 28 hours later in a bloody confrontation with the NYPD.
The finalists work on their collections Tim Gunn visits each of the finalists in their hometown.
Evan confesses his love to Cat and admits that he tipped off Muirfield to Vincents whereabouts. Meanwhile, Gabe finds evidence that someone in the department is a mole who was working with the vigilante.
As the evil plan to control Reshiram continues to unfold, the survival of the world lies in Team Plasma's defeat. But can they be defeated?!
Dallas helps George tell Tessa that he has sold their house when Dalia tries to make Tessa miserable, Tessa seeks revenge.
Sheila talks Mr. Wolfe into throwing a chastity ball at the high school George buys Dallas her dream house.
John copes with the aftermath of his kidnapping. Sammy closes in on the real robbers. Lydia continues to pursue John’s kidnappers and becomes more intimate with Russell.
The detectives investigate the murder of a wealthy man whose double life left him vulnerable to exploitation. Away from work, Rachel's recent moment of indiscretion threatens to come back to haunt her when a confused Sean takes a phone call from her one-night stand, and after Ade is pushed into living with his girlfriend on a permanent basis, Janet asks her mother to move in.
The family celebrate their favorite holiday - the Oscars. Polly invites an old classmate over for the event and tries to impress him. Meanwhile, Max thinks that Elaine has too close a relationship with her brother, and tensions explode at the party.
A series of awkward interventions. A rocket scientist makes one too many bad jokes, a zombie actor moonlights as a cleaner, a father has trouble delivering the birds and the bees talk with his son, and an astronaut loses his internet privileges.
The presenters seek out the ideal locations to enjoy their personal passions. Nick Crane heads to the Inner Hebrides to attempt a mountaineering challenge on the Isle of Skye, and reveals how Thomas Cook was inspired in the mid-th century to create his famous package tours by the steamships criss-crossing Scottish waters. Avid knitter Ruth Goodman gets some tips for completing a complex fisherman's jumper by visiting Polperro in Cornwall, learning how people's livelihoods years ago depended on their skills at making workwear to order. Poet Ian McMillan looks for creative ideas in the Cornish seaside resort of St Ives and explores the life and work of self-taught artist Alfred Wallis, and Tessa Dunlop explores the glamorous history of British lidos - public outdoor swimming pools that sprang up around the UK in the s.
The new roommate is drawn to Jordan Marlon and Nia flirt, making the roommates believe there is another couple in their midst.
How did life storm the beaches and dominate planet Earth? Ancient Australian fossils offer clues in "Life Explodes." Half a billion years ago, Australia was still part of the super-continent Gondwana. The oceans were teeming with weird and wonderful animals, but the world above the waves remained an almost lifeless wasteland. All that was about to change, though. Host Richard Smith introduces Earth's forgotten pioneers: the scuttling arthropod armies that invaded the shores and the waves of green revolutionaries whose battle for the light pushed plant life across the face of a barren continent. Evolution continued underwater as well, with armor-plated fish experimenting with teeth, jaws, sex, and lungs. NOVA's prehistoric adventure continues with four-legged animals walking onto dry land—and the planet poised for disaster.
The competition continues to sizzle tonight as the second group of finalists is decided. The winner from Monday's food truck challenge has chosen their two adversaries for tonight, and in a surprise twist they will also choose the ingredients that each team cooks with for the challenge.
A homeless man is found crushed to death under a floating wall at a modern art gallery. When the death is declared a burglary gone wrong, a doubtful Nicola and Charlie investigate.
In their third challenge, the artists are paired up to create tattoos for family members who want to commemorate a shared emotional experience. Guest stars Angela and Vanessa Simmons push the artists to put their best foot forward, challenging them to ink shoe designs in the Flash Challenge.
Willie's suspicious behavior from dying his beard to buying a new motorcycle, makes Jase come to the conclusion that Willie is having a mid-life crisis. Jase's help turns into a competition amongst the Robertson brothers to see who is most fit in body, mind, and endurance. Then, after discovering Phil and Kay's house has a mouse infestation, Miss Kay convinces Phil they need a cat to help them rid the mice problem.