"When Aliens Attack" is episode twelve in season one of Futurama. It originally aired on the Fox network in the United States on November 7, 1999. This episode was written by Ken Keeler and directed by Brian Sheesley. The episode features an attack by aliens from Omicron Persei 8, when the planets ruler Lrrr is outraged when the final episode of Earth show Single Female Lawyer is interrupted by technical difficulties.

The episode opens in the year 1999, with Fry making a pizza delivery to the control booth of WNYW, New York's Fox flagship station. While there, Fry spills beer on the console (later in the episode, Amy did some research, saying it was a Coke), interrupting the broadcast of Single Female Lawyer (a spoof of Ally McBeal). As the technician panics, Fry ominously states, "Like anyone on Earth cares." The camera pulls back from the broadcast tower, away from Earth, and through the depths of space, settling on Omicron Persei 8, a thousand light-years away and a thousand years later. Incensed that they do not get to see the end of the episode, the Omicronians launch an invasion fleet. Back on Earth during the year 3000, the off-duty Planet Express crew decides to take a trip to Monument Beach for Labor Day, where most of the world's monuments have stood since the 27th century (thanks to the activities of New New York's super villain governor), when the Omicronians begin to invade, destroying them all one after another.

Lrrr, ruler of Omicron Persei 8, demands that the Earth produce "the one called McNeal". President McNeal, fearing for his own safety, orders Zapp Brannigan to lead an assault against the alien invaders, enlisting the Planet Express crew and thousands of other ships, and turning on the Robot's patriotism circuits, to Bender's annoyance. However, they only succeed in blowing up the Hubble Space Telescope while suffering heavy casualties: the fleet stands no chance against the actual alien mother ship. After the attack predictably ends in disaster, Earth's government hands over President McNeal. Lrrr announces that he is the wrong McNeal, and vaporizes the President. Lrrr shows the world a photo of the McNeal they want, and Fry recognizes her as Jenny McNeal, the title character of Single Female Lawyer. The Omicronians demand the broadcast of the television show, or they will destroy the Earth. Unfortunately, most videotapes were destroyed in 2443, during the second coming of Jesus. The Planet Express crew decides to fake the show in order to save the world.

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