Sons of Mars (Adventure Time)

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"Sons of Mars"
Adventure Time episode
Episode no. Season 4
Episode 15
Directed by Larry Leichliter (director)
Nate Cash (creative director)
Nick Jennings (art director)
Written by Ako Castuera
Jesse Moynihan
Story by Patrick McHale
Kent Osborne
Pendleton Ward
Jesse Moynihan
Doug TenNapel
Production code 1009-093[1]
Original air date July 23, 2012
Running time 11 minutes
Guest appearance(s)
Episode chronology
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Adventure Time (season 4)
List of Adventure Time episodes

"Sons of Mars" is the fifteenth episode of the fourth season of the American animated television series Adventure Time. The episode was written and storyboarded by Ako Castuera and Jesse Moynihan, from a story by Patrick McHale, Kent Osborne, and Pendleton Ward. It originally aired on Cartoon Network on July 23, 2012. The episode guest stars Tom Gammill, Miguel Ferrer, and Melissa Villaseñor.

The series follows the adventures of Finn (voiced by Jeremy Shada), a human boy, and his best friend and adoptive brother Jake (voiced by John DiMaggio), a dog with magical powers to change shape and grow and shrink at will. In this episode, when the Martian deity Grob Gob Glob Grod (voiced by Tom Gammill, Miguel Ferrer, Melissa Villaseñor, and Tom Kenny) comes to arrest Magic Man (voiced by Kenny) for his crimes, he uses his magic to disguise himself as Jake to escape his trial while having the real Jake take his place. Jake is tried by Abraham Lincoln (voiced by Ward), King of Mars, but soon, all is righted when Finn travels to Mars to save his friend.

The episode marks both the return of Lincoln, who had appeared in the series' pilot episode, as well as the on-screen debut of the oft-mentioned deity Grob Gob Glob Grod. Ward had originally wanted Bill Nye, Bill Cosby, Bill Clinton, and Bill Murray to voice the character. "Sons of Mars" helped Cartoon Network mark double digit growth in all kid demos for the night, according to Nielsen ratings. It received largely positive reviews from critics, with many applauding the absurdity apparent in the episode.


Magic Man (voiced by Tom Kenny) is spotted by his four-headed Martian brother Grob Gob Glob Grod (voiced by Tom Gammill, Miguel Ferrer, Melissa Villaseñor, and Tom Kenny) comes to arrest Magic Man (voiced by Kenny), who are planning on bringing Magic Man back to Mars to face trial for his many crimes. Magic Man soon runs into Finn and Jake, and knocks them both unconscious. He then physically turns himself into Jake, and transforms Jake into him. Grob Gob Glob Grod, not realizing the difference, seizes Jake and rockets off to Mars. Finn, aware of the charade, forces Magic Man to take him to his house in order to find something that can help him save Jake. Magic Man's house, however, is completely derelict, and is a reflection of Magic Man's "sick mind". For instance, plants and animals live wildly in the structure, and a tiny Manticore is kept in a glass jar, apparently for Magic Man's amusement.

Finn discovers a Martian teleporter that was given to Magic Man in the hopes that he would learn love and voluntarily return to his home planet. Finn warps to Mars, and witnesses Jake being put on trial in front of Abraham Lincoln (voiced by Pendleton Ward), the King of Mars. Magic Man is found guilty, and while Jake tries to plead his case, it falls on deaf ears. Lincoln gives Jake two options: he can either be put to death with the Wand of Disbursement, or Lincoln can use the power of the wand to turn him into living star dust. Before Jake can answer, Finn intervenes, accidentally causing the wand to touch Jake, killing him. Lincoln, realizing his mistake, travels to the 37th Dead World and pleads with Death; in exchange for Jake's soul, Lincoln offers up his immortality. Finn and Jake then rocket back to Earth and punch Magic Man in the face. Finn then frees the tiny Manticore.


Elements of the episode were borrowed from a scrapped season one episode, storyboarded by Doug TenNapel.

"Sons of Mars" was written and storyboarded by Jesse Moynihan and Ako Castuera, from a story developed by series creator Pendleton Ward, Patrick McHale, Kent Osborne, Moynihan, and Doug TenNapel.[2] TenNapel had previously written the storyboard for the scrapped first season episode "The Glorriors".[3] The reason he was credited for "Sons of Mars" was because the scene featuring Lincoln interacting with Death was very similar to a scene he boarded in a scrapped season one episode.[2][4] The entry was directed by Larry Leichliter.[2] According to Moynihan, the episode was originally supposed to be connected to the third-season episode "Ghost Princess"; in Moynihan's original story, the premise involved both Ghost Princess and Magic Man. In the end, after "extensive meetings" with the show's writing staff, Moynihan decided to rewrite the episode so that it would serve as a sequel to Magic Man's story.[5] The name "Margles" was a reference to Moynihan's ex-girlfriend Margaret. Moynihan envisioned the episode as a way to negate any negative energy about their relationship and breakup and "exorcise [the energy] from his heart".[6]

A large portion of the episode's original draft featured Finn and Jake discovering a strange naturalistic temple inscribed with carvings of Abraham Lincoln. These scenes were excised due to the time constraints of the episode, and creative director Nate Cash storyboarded a shorter scene—featuring Finn and Jake carrying a broken robot—to take the removed material's place.[7][6] Ward was very conscientious in how Lincoln was portrayed in the episode; he wanted him to be exclusively referred to as "King of Mars". This was because he felt Lincoln's appearance in the pilot was solely for cheap laughs. For "Sons of Mars", Ward wanted his appearance to have real meaning.[8]

Several characters make reappearances in this episode. First and foremost it marks the return of Magic Man, voiced by Kenny, who had originally appeared in the first-season episode "Freak City".[9][10] The episode also features the return appearance of Lincoln as the king of Mars.[11] Lincoln had originally appeared in the series' pilot episode in 2007.[11] The episode marks the first appearance of the oft-mentioned deity Grob Gob Glob Grod; Moynihan had crafted the character in order to retcon why various names had been ascribed to the being.[6] Ward had originally wanted Bill Nye, Bill Cosby, Bill Clinton, and Bill Murray to voice the character, although this did not come to pass.[11][12] The deity's four heads were eventually voiced by Kenny, Tom Gammill, Melissa Villaseñor, and Miguel Ferrer.[10] Ferrer also reprised his role as Death, a character who had first appeared in the second season episode "Death in Bloom".[2][13]


"Sons of Mars" officially aired on July 23, 2012 on Cartoon Network. As part of Cartoon Network's Monday night line up, "Sons of Mars" helped the network show double digit growth in all kid demos for the night, according to Nielsen ratings.[14] The episode first saw physical release as part of the 2013 Jake the Dad DVD, which included 16 episodes from the series' fourth and fifth seasons.[15] It was later re-released as part of the complete fourth season DVD in October 2014.[16]

Oliver Sava of The A.V. Club awarded the episode an "A" and described it as a "big mythology episode" for the series.[11] He called it "a story for long-time fans of Adventure Time" due to its reveal of several important characters like Lincoln and Grob Gob Glob Grod.[11] Sava felt that the episode was "random" and "incredibly bizarre", but that it gave both a better look at Adventure Time's big picture" as well as the series' "psychedelic panorama of absurdity".[11] Sava specifically applauded the episode's merging of bizarre characters and mundane tasks, such as Grod drawing on an overhead projector, as well as the non sequitur ending featuring the tiny manticore.[11] Gordon Miller of Cinema Sentries called the episode one of the "standouts" of the Jake the Dad DVD, specifically praising the episode's use of Lincoln.[17] Colin O'Boyle of GeekSmash highlighted the appearance of Lincoln and the tiny manticore, writing, "that, ladies and gents, is one of the reasons I love Adventure Time".[18]


  1. ^ "Shows A-Z, Adventure Time With Finn and Jake". The Futon Critic. Retrieved February 3, 2013. 
  2. ^ a b c d Leichliter, Larry (director); Nate Cash (creative director); Nick Jennings (art director); Jesse Moynihan & Ako Castuera (storyboard artists) (July 23, 2012). "Sons of Mars". Adventure Time. Season 4. Episode 15. Cartoon Network. 
  3. ^ Seibert, Fred. "'The Glorriors' Storyboard". Scribd. Retrieved January 14, 2013. 
  4. ^ Muto, Adam. "What parts of the story for 'Sons of Mars' did Doug TenNapel pitch?". Formspring. Archived from the original on February 9, 2014. Retrieved January 30, 2014. The scene with Abraham Lincoln striking a deal with Death was based on a similar scene that he boarded for an abandoned season one episode. 
  5. ^ Moynihan, Jesse (July 20, 2012). "Adventure Time Update". Retrieved February 5, 2013. 
  6. ^ a b c Moynihan, Jesse (Storyboard artist). 2014. "Sons of Mars" [Commentary track], Adventure Time Season Four [DVD], Los Angeles, CA: Cartoon Network.
  7. ^ Cash, Nate (Creative director). 2014. "Sons of Mars" [Commentary track], Adventure Time Season Four [DVD], Los Angeles, CA: Cartoon Network.
  8. ^ Ward, Pendleton (Series creator). 2014. "Sons of Mars" [Commentary track], Adventure Time Season Four [DVD], Los Angeles, CA: Cartoon Network.
  9. ^ Leichliter, Larry (director); Pat McHale (creative director); Nick Jennings (art director); Pendleton Ward & Tom Herpich (storyboard artists) (July 26, 2010). "Freak City". Adventure Time. Season 1. Episode 20. Cartoon Network. 
  10. ^ a b "Tom Kenny is Back as Magic Man". Frederator. July 2012. Archived from the original on July 2012. Retrieved June 19, 2013. 
  11. ^ a b c d e f g Sava, Oliver (July 23, 2012). "'Sons of Mars' | Adventure Time | TV Club". The A.V. Club. The Onion. Retrieved February 5, 2013. 
  12. ^ Ewalt, David (November 15, 2011). "It's Adventure Time! Pendleton Ward Talks About His Hit Cartoon". Forbes. Forbes Inc. Retrieved January 22, 2013. 
  13. ^ Leichliter, Larry (director); Cole Sanchez (creative director); Nick Jennings (art director); Jesse Moynihan & Cole Sanchez (storyboard artists) (February 28, 2011). "Death in Bloom". Adventure Time. Season 2. Episode 17. Cartoon Network. 
  14. ^ Bibel, Sara (July 24, 2012). "Ratings Notes for Adult Swim, TBS, TNT, Cartoon Network and TruTV: 'The Closer', 'Rizzoli & Isles', 'Dallas,' 'Falling Skies, 'Hardcore Pawn,' Black Dynamite' & More". TV by the Numbers. Zap2it. Retrieved February 8, 2014. 
  15. ^ "Adventure Time: Jake the Dad (DVD + Jake Hat)". Retrieved July 9, 2013. 
  16. ^ "Cartoon Network-Adventure Time-Complete 4th Season". June 27, 2014. Retrieved June 27, 2014. 
  17. ^ Miller, Gordon (September 23, 2013). "Adventure Time: Jake the Dad DVD Review: The Fun Hasn't Ended". Cinema Sentries. Retrieved February 8, 2014. 
  18. ^ O'Boyle, Colin (September 17, 2013). "'Adventure Time: Jake the Dad' DVD Review". GeekSmash. Retrieved February 8, 2014. 

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