Monsters vs. Aliens is an American computer-animated television series based on the 2009 film of the same name. After being first announced in 2009, the show premiered on Nickelodeon on March 23, 2013, after the Nickelodeon Kids' Choice Awards, then began airing in its regular timeslot on April 6, 2013. Repeats have also aired occasionally on weekdays during the Nick Studio 10 block since April 29, 2013.
After their previous escapades, everything is quiet for Team Monster at Area Fifty-Something. That is, until Coverton, a telepathic alien arrives. He seems to have imprisoned the U.S. president but is actually making a peaceful deal. What the monsters, General Monger, and the President don't know is that Coverton is working for an evil alien who wants to take over the earth.