Episodes

Season 1: 2005-2006

 * 1) And Then There Were 10
 * 2) Washington B.C.
 * 3) The Krakken
 * 4) Permanent Retirement
 * 5) Hunted
 * 6) Tourist Trap
 * 7) Kevin 11
 * 8) The Alliance
 * 9) Last Laugh
 * 10) Lucky Girl
 * 11) A Small Problem
 * 12) Side Effects
 * 13) Secrets

Season 2: 2006

 * 1) Truth
 * 2) The Big Tick
 * 3) Framed
 * 4) Gwen 10
 * 5) Grudge Match
 * 6) The Galactic Enforcer
 * 7) Camp Fear
 * 8) Ultimate Weapon
 * 9) Tough Luck
 * 10) They Lurk Below
 * 11) Ghostfreaked Out
 * 12) Dr. Animo and the Mutant Ray
 * 13) Back With a Vengeance

Season 3: 2006-2007

 * 1) Ben 10,000
 * 2) Midnight Madness
 * 3) A Change of Face
 * 4) Merry Christmas
 * 5) Benwolf
 * 6) Game Over
 * 7) Super Alien Hero Buddy Adventures
 * 8) Under Wraps
 * 9) The Unnaturals
 * 10) Monster Weather
 * 11) The Return
 * 12) Be Afraid of the Dark
 * 13) The Visitor

Season 4: 2007-2008

 * 1) Perfect Day
 * 2) Divided We Stand
 * 3) Don't Drink the Water
 * 4) Big Fat Alien Wedding
 * 5) Ben 4 Good Buddy
 * 6) Ready to Rumble
 * 7) Ken 10
 * 8) Secret of The Omnitrix (movie)
 * 9) Ben 10 vs. the Negative 10 (Part 1)
 * 10) Ben 10 vs. the Negative 10 (Part 2)
 * 11) Goodbye and Good Riddance

Season 1: 2008

 * 1) Ben 10 Returns: Part 1
 * 2) Ben 10 Returns: Part 2
 * 3) Everybody Talks About the Weather
 * 4) Kevin's Big Score
 * 5) All That Glitters
 * 6) Max Out
 * 7) Pier Pressure
 * 8) What Are Little Girls Made Of?
 * 9) The Gauntlet
 * 10) Paradox
 * 11) Be-Knighted
 * 12) Plumbers' Helpers
 * 13) X = Ben + 2

Season 2: 2008-2009

 * 1) Darkstar Rising
 * 2) Alone Together
 * 3) Good Copy, Bad Copy
 * 4) Save the Last Dance
 * 5) Undercover
 * 6) Pet Project
 * 7) Grounded
 * 8) Voided
 * 9) Inside Man
 * 10) Birds of a Feather
 * 11) Unearthed
 * 12) War of the Worlds: Part 1
 * 13) War of the Worlds: Part 2

Season 3: 2009-2010

 * 1) Vengeance of Vilgax: Part 1
 * 2) Vengeance of Vilgax: Part 2
 * 3) Inferno
 * 4) Fool's Gold
 * 5) Simple
 * 6) Don't Fear The Repo
 * 7) Single-Handed
 * 8) If All Else Fails
 * 9) In Charms Way
 * 10) Ghost Town
 * 11) Ben 10: Alien Swarm
 * 12) Trade-Off
 * 13) Busy Box
 * 14) The Con of Rath
 * 15) Primus
 * 16) Time Heals
 * 17) The Secret of Chromastone
 * 18) Above and Beyond
 * 19) Vendetta
 * 20) The Final Battle: Part 1
 * 21) The Final Battle: Part 2

Season 1: 2010

 * 1) Fame - April 23, 2010
 * 2) Duped - April 30, 2010
 * 3) Hit 'Em Where They Live - May 7, 2010
 * 4) Video Games - May 14, 2010
 * 5) Escape From Aggregor - May 21, 2010
 * 6) Too Hot To Handle - May 28, 2010
 * 7) Andreas’ Fault - June 4, 2010
 * 8) Fused - June 11, 2010
 * 9) Hero Time - June 18, 2010
 * 10) Ultimate Aggregor - October 10, 2010
 * 11) Map of Infinity - October 10, 2010
 * 12) Reflected Glory - October 15, 2010
 * 13) Deep - October 22, 2010
 * 14) Where the Magic Happens - October 29, 2010
 * 15) Perplexahedron - November 5, 2010
 * 16) The Forge of Creation - November 12, 2010
 * 17) ...Nor Iron Bars a Cage - November 19, 2010
 * 18) The Enemy of My Enemy - December, 3, 2010
 * 19) Absolute Power: Part 1 - December 10, 2010
 * 20) Absolute Power: Part 2 - December 10, 2010