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The Worst Episodes of Ben 10

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

When 10-year-old Ben Tennyson discovers a mysterious device, he gains the power to change into ten different alien heroes, each with uniquely awesome powers. With such abilities at his disposal, Ben realizes a greater responsibility to help others and stop evildoers, but that doesn't mean he's above a little superpowered mischief now and then.

Genres:AnimationSci-Fi & FantasyAction & AdventureComedyKids

Lowest Rated Episodes Summary

The worst episode of "Ben 10" is "Secret of the Omnitrix (1)", rated 6.7/10 from 480 user votes. It was directed by N/A and written by N/A. "Secret of the Omnitrix (1)" aired on 8/4/2007 and is rated 0.2 point(s) lower than the second lowest rated, "Super Alien Hero Buddy Adventures".

  • Secret of the Omnitrix (1)
    6.7/10 480 votes

    #1 - Secret of the Omnitrix (1)

    Season 4 Episode 5 - Aired 8/4/2007

    During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across space to track down the Omnitrix's creator, Azmuth.

    Director: N/A

    Writer: N/A

  • Super Alien Hero Buddy Adventures
    6.9/10 511 votes

    #2 - Super Alien Hero Buddy Adventures

    Season 3 Episode 7 - Aired 3/3/2007

    Ben's alien heroes are starring in a silly network cartoon called Super Alien Hero Buddy Adventures and his favorite action hero Kangaroo Commando has been pulled off the air by the same network, so Ben tries to get him back on television and get credit for the alien heroes.

    Director: Scooter Tidwell

    Writer: Marty Isenberg

  • Tourist Trap
    7.0/10 682 votes

    #3 - Tourist Trap

    Season 1 Episode 6 - Aired 2/4/2006

    Ben accidentally releases creatures made of electric energy and must use his own powers to recapture them.

    Director: Scooter Tidwell

    Writer: N/A

  • Merry Christmas
    7.0/10 528 votes

    #4 - Merry Christmas

    Season 3 Episode 4 - Aired 12/11/2006

    Ben, Grandpa Max, and Gwen come upon a bizarre Christmas theme park run by an evil entity who thinks Grandpa Max is Santa Claus and proceeds to trap him.

    Director: N/A

    Writer: N/A

  • Side Effects
    7.1/10 635 votes

    #5 - Side Effects

    Season 1 Episode 12 - Aired 3/18/2006

    Ben's summer cold causes strange physical changes in his alien personas.

    Director: Scooter Tidwell

    Writer: Greg Klein

  • Monster Weather
    7.1/10 482 votes

    #6 - Monster Weather

    Season 3 Episode 10 - Aired 3/24/2007

    Grandpa Max takes the kids to Chicago to see one of his favorite band, Shag Carpeting. The kids meet a weather reporter who forecasts the weather with a robot named S.A.M. He uses the robot to create rain, but a giant creature forms! Ben quickly takes care of it. The reporter tries to destroy S.A.M., but he convinces him not to. S.A.M. then goes into the sky and begins to cause chaos. The reporter tries to stop it again, but he is no longer in control. Can Ben destroy the robot and save a city from disaster?

    Director: N/A

    Writer: N/A

  • Washington B.C.
    7.2/10 798 votes

    #7 - Washington B.C.

    Season 1 Episode 2 - Aired 1/13/2006

    Ben must fight Dr. Animo, a crazed scientist who has a DNA-altering device.

    Director: Alex Soto

    Writer: Tom Pugsley, Greg Klein

  • The Galactic Enforcers
    7.2/10 570 votes

    #8 - The Galactic Enforcers

    Season 2 Episode 6 - Aired 6/13/2006

    At a museum, Ben sits and reads a comic, daydreaming about himself as a super hero. As Gwen interrupts him, she is not happy how Ben treats the artwork. His day has been a bore, but when an alien vessel arrives, an alien named Volcanus and the bounty hunter Sixsix come to pursue the Biocenthium alloy to complete a mixture with Element X to create a bomb, strong enough to destroy a whole solar system. Suddenly, Ben meets The Galactic Enforcers, a group of three who serve in protecting the galaxy under the conduct code. Ben is intrigued by their heroic appearance, but are they really something to be looking up to?

    Director: Scooter Tidwell

    Writer: Joe Kelly

  • Secret of the Omnitrix (2)
    7.2/10 473 votes

    #9 - Secret of the Omnitrix (2)

    Season 4 Episode 6 - Aired 8/4/2007

    During a battle with Dr. Animo, the Omnitrix is accidentally set to self-destruct. In order to stop it, Ben, Gwen, and Tetrax travel across space to track down the Omnitrix's creator, Azmuth.

    Director: N/A

    Writer: N/A

  • The Krakken
    7.3/10 750 votes

    #10 - The Krakken

    Season 1 Episode 3 - Aired 1/14/2006

    Ben has his hands full with a giant sea monster and an evil poacher.

    Director: Scooter Tidwell

    Writer: Joe Kelly

  • The Big Tick
    7.3/10 603 votes

    #11 - The Big Tick

    Season 2 Episode 2 - Aired 5/30/2006

    At Yellowstone Park, Ben and Gwen inadvertently discover a new form on the Omnitrix: Cannon Bolt, an armadillo-like alien that Ben isn't too fond of. Soon after, a meteor comes crashing down to the park, containing a planet-devouring, tick-like alien. On top of that, three other aliens arrive with it, and worship it as their savior, the "Great One." Powerless to stop the planet-eater with his regular forms, Ben must rely on a new form he knows nothing about.

    Director: N/A

    Writer: N/A

  • Midnight Madness
    7.3/10 523 votes

    #12 - Midnight Madness

    Season 3 Episode 2 - Aired 12/2/2006

    When Ben is hypnotized, he begins breaking the law while sleepwalking. Once the evil hypnotist called Sublimino discovers the aliens at his disposal, he plots to put hundreds of people under his control forever.

    Director: Scooter Tidwell

    Writer: Marty Isenberg

  • Permanent Retirement
    7.4/10 729 votes

    #13 - Permanent Retirement

    Season 1 Episode 4 - Aired 1/21/2006

    Ben must rescue his aunt and grandfather when they are held hostage by shape-shifting aliens.

    Director: Scooter Tidwell

    Writer: N/A

  • They Lurk Below
    7.4/10 557 votes

    #14 - They Lurk Below

    Season 2 Episode 10 - Aired 7/18/2006

    Our heroes ride a jet belonging to Grandpa Max's old Friend, Donovan Grand Smith, who owns an underwater resort. At the entrance, they receive a warm welcome from Donovan himself, though they also meet with his grandson, Edwin, who didn't seem to be excited about their guests. Later, when Edwin, Ben, and Gwen enter the Undersea Manta Ray, a giant submarine, they encounter strange aliens that threatened to destroy the whole resort. While the kids find a way to cooperate with each other to find the source that lures them in, Donovan himself learns a few lessons in how to bond better with his grandson.

    Director: N/A

    Writer: N/A

  • The Unnaturals
    7.4/10 480 votes

    #15 - The Unnaturals

    Season 3 Episode 9 - Aired 3/17/2007

    While attending the Little League World Series to see his home team play, Ben discovers that the opponents are actually robots posing as kids. They also have plans to replace the President with one, as well.

    Director: Scooter Tidwell

    Writer: Marty Isenberg

  • A Small Problem
    7.5/10 634 votes

    #16 - A Small Problem

    Season 1 Episode 11 - Aired 3/11/2006

    Ben gets revenge on an amusement-park attendant who said he was too small to go on a ride.

    Director: Scooter Tidwell

    Writer: N/A

  • Ultimate Weapon
    7.5/10 569 votes

    #17 - Ultimate Weapon

    Season 2 Episode 8 - Aired 7/6/2006

    In Texas, a group of men discover a mysterious mask belonging to Ah Puch, the Mayan god of death and destruction. The mask is the key to the ultimate weapon in the world, known as the Sword of Ekchuah. However, when Grandpa Max and his grandkids learn that the mask is discovered, he impatiently sets out to obtain the mask, so that it does not fall in the wrong hands. Unfortunately, they find out that Enoch of The Organization is after it as well. The kids worry of how Grandpa Max has become, but with Enoch in the way, will Grandpa Max find the sword before him?

    Director: Scooter Tidwell

    Writer: N/A

  • Don't Drink the Water
    7.5/10 493 votes

    #18 - Don't Drink the Water

    Season 4 Episode 3 - Aired 7/21/2007

    After being in contact with water from the Fountain of Youth, Grandpa Max and Ben are reverted to being kids again. Now, Gwen is left to take care of them while stopping Hex from finding the fountain's source.

    Director: Scooter Tidwell

    Writer: Tom Pugsley, Marty Isenberg, Greg Klein

  • The Alliance
    7.6/10 650 votes

    #19 - The Alliance

    Season 1 Episode 8 - Aired 2/18/2006

    Ben clashes with a female gang member who's become part cyborg.

    Director: Scooter Tidwell

    Writer: N/A

  • Dr. Animo and the Mutant Ray
    7.6/10 551 votes

    #20 - Dr. Animo and the Mutant Ray

    Season 2 Episode 12 - Aired 8/25/2006

    The Tennysons arrive at a swamp, where a festivities of Gatorfest start first thing the next day. Gwen finds Ben playing around with the Omnitrix, and she warns him that it may create unusual problems. Without heeding Max and Gwen's warning, he pops the face out, and the Omnitrix acts up. Right away, something was wrong, though it was gone unnoticed, at least, until the next day. Gator-fest was going along well, but the giant frog of Dr. Animo comes in to disrupt it. Dr. Animo has returned, and he wants to take revenge on Ben. But when Ben goes alien, he transforms into a hybrid alien with unbalanced attributes. Will Ben ever learn his lesson in listening for a change?

    Director: Scooter Tidwell

    Writer: N/A

  • Truth
    7.7/10 634 votes

    #21 - Truth

    Season 2 Episode 1 - Aired 5/29/2006

    After the battle with Vilgax, Grandpa Max retells his story to Ben about his past. He was with an organization that was not known to exist, referred to as "The Plumbers," a group of people who track down extraterrestrial life. Meanwhile, they meet Phil, an old partner of Grandpa Max. But they soon find out that he steals a device, called the Null Void Projector, to selfishly use it to make money by appearing to capture aliens that he alone released himself.

    Director: Scooter Tidwell

    Writer: Marty Isenberg

  • Gwen 10
    7.7/10 630 votes

    #22 - Gwen 10

    Season 2 Episode 4 - Aired 6/1/2006

    In this "how 'bout?" episode, Gwen gets the Omnitrix and the power that comes with it.

    Director: Scooter Tidwell

    Writer: Greg Klein

  • Camp Fear
    7.7/10 580 votes

    #23 - Camp Fear

    Season 2 Episode 7 - Aired 6/21/2006

    When Ben and Gwen argue over a birthday party to occur in the next few months, Grandpa Max is distracted by their quarreling and almost hits a young boy camper. To ensure the boy's life, they head to Camp Opinicon, only to find no people around. As they investigate the premises, they find twins, whom were also hiding from something that may have a connection to the lifeless camp. Grandpa Max readies to leave the area with the children, only to find that the RV's engine is clogged with a mysterious fungus. While the kids take in shelter in a nearby cabin, Grandpa Max is captured. Now Ben must come to the rescue to discover a new alien form, as well as a way to destroy the evil alien Myceloid Monsters and their Fungal Master, and learn the benefits of what sharing can do.

    Director: N/A

    Writer: Marty Isenberg

  • Tough Luck
    7.7/10 562 votes

    #24 - Tough Luck

    Season 2 Episode 9 - Aired 7/12/2006

    Hex's niece, Charmcaster, enters the underground prison he's held at to release him out of his cell. With her help, Hex was able to regain most of his powers after being given his magical staff. Meanwhile, Ben, Gwen, and Grandpa Max head to a magic convention held in Las Vegas, and in there, Gwen finds the legendary Keystone of Bazell. With it, she gains the powers of Lucky Girl once again, but will it last after finding out that Hex and his niece are after it?

    Director: Scooter Tidwell

    Writer: N/A

  • Divided We Stand
    7.7/10 495 votes

    #25 - Divided We Stand

    Season 4 Episode 2 - Aired 7/14/2007

    Ben gains another Omnitrix hero to use, which he calls Ditto. Gwen can't stand being around the multiplying Dittos, and they end up giving her headaches. The Dittos, though, prove to be real helpful against Dr. Animo and his multiplying Stinkflies after he extracted some of Ditto's DNA.

    Director: N/A

    Writer: Marty Isenberg