| Adventure Time | |
|---|---|
| Season 2 | |
 DVD cover | |
| Starring | |
| No. of episodes | 26 |
| Release | |
| Original network | Cartoon Network |
| Original release | October 11, 2010 – May 9, 2011 |
| Season chronology | |
The second season of Adventure Time, an American animated television series created by Pendleton Ward, premiered on Cartoon Network on October 11, 2010, and concluded on May 2, 2011, and was produced by Frederator Studios and Cartoon Network Studios. The season follows the adventures of Finn, a human boy, and his best friend and adoptive brother Jake, a dog with magical powers to change shape and size at will. Finn and Jake live in the post-apocalyptic Land of Ooo, where they interact with the other main characters of the show: Princess Bubblegum, The Ice King, Marceline the Vampire Queen, Lumpy Space Princess, and BMO.
After the first, the second season of Adventure Time was quickly ordered by Cartoon Network. However, the beginning of the series debuted under production constraints, and "It Came from the Nightosphere" aired after just barely being finished. The season was storyboarded and written by Adam Muto, Rebecca Sugar, Kent Osborne, Somvilay Xayaphone, Cole Sanchez, Benton Connor, Jesse Moynihan, Ako Castuera, and Tom Herpich.
The first episode of the season, "It Came from the Nightosphere" was watched by 2.001 million viewers; this marked a decrease in viewers watching Cartoon Network when compared to the previous season's debut, although it marked an increase when compared to the last season's finale. The season ended with the episode "Heat Signature" on May 9, 2011. It was viewed by 1.975 million viewers, which marked an increase from the first-season finale. The season was initially supposed to end with the cliffhanger two-parter "Mortal Folly"/"Mortal Recoil." Still, due to a scheduling error, "Heat Signature" was the last episode to air for the season. In 2011, Adventure Time was nominated for an Annie Award, and the episode "It Came from the Nightosphere" was nominated for a Primetime Emmy Award for Outstanding Short-format Animated Program. Neither the series nor the episode won, however. Several compilation DVDs that contained episodes from the season were released after the season finished airing. The complete season set was released on June 4, 2013, on DVD and Blu-ray.