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The Day the Earth Stood Cool

Wikisimpsons - The Simpsons Wiki
Season 24 Episode
514 "A Tree Grows in Springfield"
"The Day the Earth Stood Cool"
"To Cur, with Love" 516
For the quest in The Simpsons: Tapped Out, see The Day The Earth Stood Cool (Tapped Out quest).
"The Day the Earth Stood Cool"
The Day the Earth Stood Cool promo 4.jpg
Episode Information
Episode number: 515
Season number: S24 E7
Production code: PABF20
Original airdate: December 9, 2012
Guest star(s): Fred Armisen as Terrence
Carrie Brownstein as Emily
Patton Oswalt as T-Rex
Colin Meloy as himself
Showrunner: Matt Selman
Written by: Matt Selman
Directed by: Matthew Faughnan

"The Day the Earth Stood Cool" is the seventh episode of season 24 of The Simpsons and the five-hundred and fifteenth episode overall. It originally aired on December 9, 2012. The episode was written by Matt Selman and directed by Matthew Faughnan. It guest stars Fred Armisen as Terrence, Carrie Brownstein as Emily, Patton Oswalt as T-Rex and Colin Meloy as himself.


"Homer befriends Terrence (Fred Armisen) and Emily (Carrie Brownstein), new neighbors from Portland. Homer becomes like Terrence because he wants a younger, hipper image. When Bart gets into a fight with Terrance and Emily's son T-Rex (Patton Oswalt), the friendship becomes strained and Terrence, angry at the Simpsons, calls his friends from Portland, and Springfield is soon full with 'cool' people. Meanwhile, Marge feels uncomfortable around Emily and her friends when they are breastfeeding, and she is feeding Maggie from the bottle."


Homer is visiting the playground with Bart where he is called "grandfather" which annoys him. At work, Homer sees that his colleagues are eating Devil Donuts but they are out; he calls to the police and they start looking for the vendor that sells those donuts. They find the vendor, who has ran out of donuts for the day. The owner Terrence, let Homer taste a new variety he is creating, and he likes it. They start talking and it appears that Terrence is a dad, which Homer finds surprising since Terrence is cool and he's not anymore. Terrence tells Homer that you can't stop living just because you have children. Terrence says his family is from Portland, and they're looking for a new place to move in. Homer says that his neighbor's house is for sale. Terrence decides to buy it and he renovates the house.

The Simpson family visit Terrence and his family to welcome them to the neighborhood. Lisa loves how the family lives, while Bart think they are boring and goes home. Marge talks with the mother, Emily, and when she starts breastfeeding her baby, Corduroy, Marge becomes uncomfortable, since she is not breastfeeding Maggie. Marge is about to tell Homer that she does not like the family, when she is shocked to discover that Terrence has shaved Homer. Terrance and Lisa continue to hang out with their new neighbors, Marge thinks they should cool down with their new friends, for they not live the same lifestyle. Homer replies that they are cool which he is not, and Marge tries to comfort him by saying that he is cool and always has been. Homer and the kids are with Terrance and his son at several events, having fun. Marge does not like how the kids and Homer have changed since they met their new neighbors. T-Rex, Terrence & Emily' son, has his birthday and, to fit in at the party, Marge pretends that she is breastfeeding Maggie, but when the other mothers find out the truth, they try to breastfeed Maggie themselves, but Marge refuses to let them. T-Rex opens his presents and he mocks Homer's gift, which made Bart angry and they start fighting. As a result, Terrence & his family end their association with Simpsons, leading to Homer missing his new friends. Ned Flanders tries to unite the two neighbors but fails, instead the new neighbors call their friends from Portland and they move in and take over Springfield.

Homer and Marge do not like what has happened to their city, as the "cool" atmosphere is now all over town. T-Rex and Bart become friends again and T-Rex watches TV with Bart and forgets to turn over the family's compost, causing their home to catch fire. Homer and Marge visit Terrence and Emily at a festival, hoping to get them to be nicer to them. During the discussion, they smell the smoke from the house, and call the fire department, who have lost their horses and can not put out the fire. They trying using the hose, but the water has run out. The Simpson family breaks through the fire with the infant formula and manage to extinguish it. Emily thanks Marge, since her milk saved their home. Marge acknowledges that she feels a little ashamed that she didn't breastfeed any of her kids (except Lisa, for nine months). Lisa says that The New York Times did an expose claiming Springfield USA's as the country's coolest city. This causes all the families from Portland to leave Springfield; Lisa is sad and tells them she will find them again.  

A Brief Message About Artisanal Nuclear Power[edit]

Mr. Burns and an old man talk about how they made electricity in the past. They panned atoms in a lake and cleaved them by hand. They are stirred and blown by hand, before the power ends up in barrels that are connected into the house. Burns and the man then begin digging on a mountain.


The episode is also known as "The Day the Earth Stayed Cool".[1]

On December 10, 2012, the storyboard, the animatic and the full color images of three scenes from the episode were posted on Pinterest. A few images also showed Emily's original design.

International airdates[edit]

Country Date Channel Note
Hispanic America.gif Latin America May 5, 2013 Fox Latin America
800px-Flag of the United Kingdom.svg.png United Kingdom April 28, 2013; 6pm Sky1 Gathered 925,000 viewers
Spain flag.png Spain December 27, 2014 Antena 3

Promotional images[edit]


The Saga of Carl - title screen.png Wikisimpsons has a collection of images related to "The Day the Earth Stood Cool".
Season 24 Episodes
Moonshine River Treehouse of Horror XXIII Adventures in Baby-Getting Gone Abie Gone Penny-Wiseguys A Tree Grows in Springfield The Day the Earth Stood Cool To Cur, with Love Homer Goes to Prep School A Test Before Trying The Changing of the Guardian Love Is a Many-Splintered Thing Hardly Kirk-ing Gorgeous Grampa Black-Eyed, Please Dark Knight Court What Animated Women Want Pulpit Friction Whiskey Business The Fabulous Faker Boy The Saga of Carl Dangers on a Train