S03E21: King of Mars
Eustace Strych is back, and he's still determined to humiliatingly defeat Jimmy. Now the race to find an energy source on Mars is on! Who will win?
Previous Episode 
Season 1
When Pants Attack
S1E1 / 20 Jul 2002
Normal Boy
S1E2 / 06 Sep 2002
Birth of a Salesman
S1E3 / 06 Sep 2002
Brobot
S1E4 / 13 Sep 2002
The Big Pinch
S1E5 / 13 Sep 2002
Granny Baby
S1E6 / 20 Sep 2002
Time Is Money
S1E7 / 20 Sep 2002
Raise the Oozy Scab
S1E8 / 27 Sep 2002
I Dream of Jimmy
S1E9 / 27 Sep 2002
Jimmy On Ice
S1E10 / 04 Oct 2002
Battle of the Band
S1E11 / 04 Oct 2002
See Jimmy Run
S1E12 / 14 Oct 2002
Trading Faces
S1E13 / 14 Oct 2002
The Phantom of Retroland
S1E14 / 30 Oct 2002
My Son, the Hamster
S1E15 / 30 Oct 2002
Hall Monster
S1E16 / 01 Nov 2002
Hypno-Birthday to You!
S1E17 / 01 Nov 2002
Krunch Time
S1E18 / 15 Nov 2002
Substitute Creature
S1E19 / 15 Nov 2002
Safety First
S1E20 / 30 Nov 2002
Crime Sheen Investigation
S1E21 / 30 Nov 2002
Journey to the Center of Carl
S1E22 / 31 Jan 2003
Aaughh!! Wilderness!!
S1E23 / 31 Jan 2003
Party at Neutron's
S1E24 / 17 Feb 2003
Ultra Sheen
S1E25 / 17 Feb 2003
Broadcast Blues
S1E26 / 14 Mar 2003
Professor Calamitous, I Presume
S1E27 / 14 Mar 2003
Maximum Hugh
S1E28 / 17 May 2003
Sleepless in Retroville
S1E29 / 17 May 2003
Make Room for Daddy-O
S1E30 / 06 Jun 2003
A Beautiful Mine
S1E31 / 01 Aug 2003
Sorry, Wrong Era
S1E32 / 05 Sep 2003
Season 2
Beach Party Mummy
S2E1 / 19 Sep 2003
The Retroville 9
S2E2 / 03 Oct 2003
Grumpy Young Men
S2E3 / 03 Oct 2003
Nightmare in Retroville
S2E4 / 29 Oct 2003
Monster Hunt
S2E5 / 11 Nov 2003
Jimmy For President
S2E6 / 11 Nov 2003
Return of the Nanobots
S2E7 / 14 Nov 2003
Holly Jolly Jimmy
S2E8 / 08 Dec 2003
Love Potion #976/J
S2E9 / 13 Feb 2004
Sheen's Brain
S2E10 / 08 Mar 2004
MaternoTron Knows Best
S2E11 / 09 Mar 2004
Send in the Clones
S2E12 / 09 Mar 2004
The Great Egg Heist
S2E13 / 10 Mar 2004
The Feud
S2E14 / 10 Mar 2004
Out, Darn Spotlight
S2E15 / 11 Mar 2004
The Junkman Cometh
S2E16 / 12 Mar 2004
Foul Bull
S2E17 / 26 Mar 2004
The Science Fair Affair
S2E18 / 26 Mar 2004
Men At Work
S2E19 / 02 Jun 2004
The Mighty Wheezers
S2E20 / 07 Jun 2004
Billion Dollar Boy
S2E21 / 07 Jun 2004
Season 3
Lights! Camera! Danger!
S3E1 / 27 Nov 2004
The N Men
S3E2 / 27 Nov 2004
The Tomorrow Boys
S3E3 / 23 May 2005
Fundemonium
S3E4 / 24 May 2005
Stranded
S3E5 / 26 May 2005
Jimmy Goes to College
S3E6 / 27 May 2005
Who's Your Mommy?
S3E7 / 20 Jun 2005
Clash of the Cousins
S3E8 / 20 Jun 2005
My Big Fat Spy Wedding
S3E9 / 22 Jul 2005
Crouching Jimmy, Hidden Sheen
S3E10 / 18 Nov 2005
The Incredible Shrinking Town
S3E11 / 23 Jan 2006
One of Us
S3E12 / 24 Jan 2006
Vanishing Act
S3E13 / 24 Jan 2006
The Trouble with Clones
S3E14 / 25 Jan 2006
The Evil Beneath
S3E15 / 26 Jan 2006
Carl Wheezer: Boy Genius
S3E16 / 26 Jan 2006
Who Framed Jimmy Neutron?
S3E17 / 27 Jan 2006
Flippy
S3E18 / 27 Jan 2006
How to Sink a Sub
S3E19 / 17 Nov 2006
Lady Sings the News
S3E20 / 17 Nov 2006
King of Mars
S3E21 / 25 Nov 2006
El Magnifico
S3E22 / 25 Nov 2006
Best in Show
S3E23 / 25 Nov 2006
Debi Derryberry
Jimmy Neutron (voice)
Jeffrey Garcia
Sheen Estevez (voice)
