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The Worst Episodes of Ben 10: Ultimate Alien

Every episode of Ben 10: Ultimate Alien ranked from worst to best. Explore the Worst Episodes of Ben 10: Ultimate Alien!

Binge this in 19h 56m•Peaking at 9.5/10

With his secret identity now revealed to the world, Ben Tennyson continues to fight evil as a superhero with the help of the newly acquired Ultimatrix.

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Episode Rankings

  1. #1 Worst Episode
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    Ben 10: Ultimate Alien Season 1 Episode 2 - Duped
    6.7/10(540 votes)

    #1 - Duped

    S1:E2

    Ben is supposed to attend a tournament to support his girlfriend, but the Forever Knights are trying to break into a museum. Ben tries to use the Ultimatrix to handle all his obligations.

    Director:Butch Lukic
    Writer:Len Uhley

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  2. Ben 10: Ultimate Alien Season 1 Episode 12 - Reflected Glory
    6.7/10(475 votes)

    #2 - Reflected Glory

    S1:E12

    Cash and JT convince the team to allow them to take credit for the team's actions so they can earn money for Cash's mother's operation.

    Director:Matt Youngberg
    Writers:Peter David, Joe Casey, Joe Kelly

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  3. Ben 10: Ultimate Alien Season 2 Episode 3 - Viktor: The Spoils
    6.7/10(458 votes)

    #3 - Viktor: The Spoils

    S2:E3

    The King of Zarkovia asks the team for help with a civil war. The team agrees to help when they find out Dr. Viktor may be involved.

    Director:Butch Lukic
    Writers:Joe Casey, Joe Kelly, Kevin Grevioux

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  4. Ben 10: Ultimate Alien Season 2 Episode 2 - Eye of the Beholder
    6.8/10(461 votes)

    #4 - Eye of the Beholder

    S2:E2

    Ben, Julie and the rest of the heroic crew embark on a dangerous journey that could cost them all their lives in an effort to achieve the safe return of Ship and his former owner Baz-L.

    Director:Dan Riba
    Writers:Len Uhley, Joe Casey, Duncan Rouleau

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  5. Ben 10: Ultimate Alien Season 2 Episode 4 - The Big Story
    6.9/10(454 votes)

    #5 - The Big Story

    S2:E4

    Jimmy Jones is looking for the biggest new story he and Ben can tackle, but thats when he stumbles upon a strange pink tentacled creature which crashed from the sky into a near by cave.

    Director:Matt Youngberg
    Writers:Ernie Altbacker, Joe Casey, Joe Kelly

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  6. Ben 10: Ultimate Alien Season 1 Episode 4 - Video Games
    7.0/10(506 votes)

    #6 - Video Games

    S1:E4

    Ben gets an offer to star in his own video game, but the designer's real motives are part of a plan to destroy Ben.

    Director:Dan Riba
    Writers:Joe Casey, Joe Kelly

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  7. Ben 10: Ultimate Alien Season 2 Episode 21 - The Mother of All Vreedles
    7.0/10(5 votes)

    #7 - The Mother of All Vreedles

    S2:E21

    Ma Vreedle goes to Earth to expand her family by creating clones and using all the water on Earth.

    Director:Dan Riba
    Writers:Joe Casey, Joe Kelly

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  8. Ben 10: Ultimate Alien Season 2 Episode 5 - Girl Trouble
    7.2/10(453 votes)

    #8 - Girl Trouble

    S2:E5

    Gwen is excited by the prospect of her cousin Sunny paying the team a visit while dealing with the Robots of Dimension 12. But her excitement quickly turns into trepidation when it is uncovered that her cousin is not all that she appears and has some particularly sinister intentions.

    Director:Dan Riba
    Writers:Joe Casey, Joe Kelly

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  9. Ben 10: Ultimate Alien Season 2 Episode 7 - The Creature from Beyond
    7.4/10(447 votes)

    #9 - The Creature from Beyond

    S2:E7

    The Forever Knights unleash an evil force mistaken for an ancient weapon.

    Director:Dan Riba
    Writers:Len Uhley, Joe Casey, Duncan Rouleau

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  10. Ben 10: Ultimate Alien Season 2 Episode 1 - The Transmogrification of Eunice
    7.5/10(491 votes)

    #10 - The Transmogrification of Eunice

    S2:E1

    A mysterious alien girl named Eunice has no memory and is being hunted by Sunder. While evading Sunder, Ben soon discovers that Eunice has nature-based abilities.

    Director:Matt Youngberg
    Writers:Joe Casey, Joe Kelly

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  11. Ben 10: Ultimate Alien Season 2 Episode 8 - Basic Training
    7.5/10(461 votes)

    #11 - Basic Training

    S2:E8

    Ben, Gwen, and Kevin are summoned to a Plumbers' Academy to go under training that is supervised by Magister Hulka.

    Director:Butch Lukic
    Writers:Joe Casey, Joe Kelly, Adam Beechen

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  12. Ben 10: Ultimate Alien Season 1 Episode 13 - Deep
    7.6/10(479 votes)

    #12 - Deep

    S1:E13

    Aggregor is after the next piece of the map on a watery planet.

    Director:Dan Riba
    Writers:Marty Isenberg, Joe Casey, Joe Kelly

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  13. Ben 10: Ultimate Alien Season 2 Episode 6 - Revenge of the Swarm
    7.6/10(463 votes)

    #13 - Revenge of the Swarm

    S2:E6

    Victor Validus resurfaces and attacks Ben at night. Elena Validus and the nanochips return.

    Director:Butch Lukic
    Writers:Joe Casey, Joe Kelly, Stan Berkowitz

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  14. Ben 10: Ultimate Alien Season 1 Episode 1 - Fame
    7.7/10(635 votes)

    #14 - Fame

    S1:E1

    Ben's secret is out. As Ben deals with his newfound fame, a new threat emerges as a thief steals parts of a new advanced spaceship from NASA.

    Director:Dan Riba
    Writer:Dwayne McDuffie

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  15. Ben 10: Ultimate Alien Season 1 Episode 7 - Andreas' Fault
    7.8/10(502 votes)

    #15 - Andreas' Fault

    S1:E7

    Then team encounters another of Aggregor's escaped prisoners, Andreas, whom Argit is using as part of a scheme against the Forever Knights.

    Director:Dan Riba
    Writers:Ernie Altbacker, Joe Casey, Joe Kelly

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  16. Ben 10: Ultimate Alien Season 1 Episode 9 - Hero Time
    7.8/10(501 votes)

    #16 - Hero Time

    S1:E9

    Ben meets his hero, Captain Nemesis, who's become jealous of all the attention Ben attracts.

    Director:Matt Youngberg
    Writers:Steven Barnes, Joe Casey, Joe Kelly

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  17. Ben 10: Ultimate Alien Season 2 Episode 20 - The Widening Gyre
    7.8/10(5 votes)

    #17 - The Widening Gyre

    S2:E20

    Colonel Rozum asks the team to investigate an island of garbage where people have been disappearing.

    Director:Matt Youngberg
    Writers:Joe Casey, Joe Kelly

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  18. Ben 10: Ultimate Alien Season 2 Episode 28 - The Eggman Cometh
    7.8/10(5 votes)

    #18 - The Eggman Cometh

    S2:E28

    Dr. Animo is unexpectedly paroled from prison and starts up a company selling eggs, which in fact contain mutant dinosaurs which he wishes to distribute around the world.

    Director:Unknown
    Writer:Unknown

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  19. Ben 10: Ultimate Alien Season 1 Episode 3 - Hit 'Em Where They Live
    7.9/10(519 votes)

    #19 - Hit 'Em Where They Live

    S1:E3

    After Jimmy Jones reveals Ben's identity, some of his enemies (such as Zombozo, Rojo, Charmcaster, Vulkanus, and Sevenseven) team up to try to attack his family. Now Ben and his friends have to protect them no matter what.

    Director:Matt Youngberg
    Writer:Len Wein

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  20. Ben 10: Ultimate Alien Season 1 Episode 17 - Nor Iron Bars a Cage
    8.0/10(507 votes)

    #20 - Nor Iron Bars a Cage

    S1:E17

    Kevin's out for payback on anyone who has ever crossed him. His next stop is a prison in the Null Void. Ben and Gwen try to stop him, where Ben comes to a grim decision.

    Director:Butch Lukic
    Writers:Joe Casey, Joe Kelly

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  21. Ben 10: Ultimate Alien Season 1 Episode 18 - The Enemy of My Enemy
    8.0/10(507 votes)

    #21 - The Enemy of My Enemy

    S1:E18

    Argit asks Ben and Gwen for protection from Kevin, so they take him to the nearest Plumbers Academy, but that won't stop Kevin.

    Director:Matt Youngberg
    Writers:Len Uhley, Joe Casey, Duncan Rouleau

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  22. Ben 10: Ultimate Alien Season 2 Episode 11 - Moon Struck
    8.0/10(485 votes)

    #22 - Moon Struck

    S2:E11

    Grandpa Max tells the team about his first UFO encounter, which led him to meet Verdona.

    Director:Butch Lukic
    Writers:Len Uhley, Joe Casey, Duncan Rouleau

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  23. Ben 10: Ultimate Alien Season 2 Episode 14 - Simian Says
    8.0/10(5 votes)

    #23 - Simian Says

    S2:E14

    Simian asks the team for help when a DNAlien takes over his home world.

    Director:Matt Youngberg
    Writers:Charlotte Fullerton, Joe Casey, Joe Kelly

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  24. Ben 10: Ultimate Alien Season 2 Episode 18 - The Perfect Girlfriend
    8.0/10(5 votes)

    #24 - The Perfect Girlfriend

    S2:E18

    Julie suddenly leaves a tennis tournament and spends all her time with Ben.

    Director:Dan Riba
    Writers:Joe Casey, Joe Kelly

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  25. Ben 10: Ultimate Alien Season 2 Episode 22 - A Knight to Remember
    8.0/10(5 votes)

    #25 - A Knight to Remember

    S2:E22

    The Flame Keepers realize their mistake too late. Vilgax wants the power of Daigon. The Forever Knights are out to destroy Daigon. Ben and the team try to sort things out.

    Director:Butch Lukic
    Writers:Len Uhley, Joe Casey, Duncan Rouleau

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Worst Episodes Summary

"Duped" is the worst rated episode of "Ben 10: Ultimate Alien". It scored 6.7/10 based on 540 votes. Directed by Butch Lukic and written by Len Uhley, it aired on 4/30/2010. This episode scored 0.0 points lower than the second lowest rated, "Reflected Glory".