Ben 10

- Season 4

(2020)

Team Tennyson visits the monuments of Chichen Itza, where Ben learns about the possible existence of a mythical creature.

As Team Tennyson helps transport a caged Quetzalcoatl through the Yucatan jungle, saboteur La Grange hijacks the precious cargo.

The Tennyson's are transporting a rare and endangered animal back to its habitat. But when Timbuc Tu frees it and controls the creature, it's up to Ben to save the day.

The Tennysons find themselves stuck inside an inescapable funhouse constructed by Zombozo; Ben goes alien and fights for escape ultimately proving that behind every illusion there's a disappointing secret.

After Grandpa Max's supersmart buddy Phil discovers that a second extraterrestrial item crashed alongside the Omnitrix, Team Tennyson sets off to find the second crash site before someone else does.

Ben and Gwen learn a rumor of an alien invasion happening at the park they are camping at but when they investigate they discover a preserve containing a host of mutated creatures engineered by Animo! With the unexpected help of Kevin 11 and his family, Ben proves that the rumors are false and that truth is stranger than fiction!

Ben Gwen and Grandpa Max arrive in Bismarck North Dakota for its annual celebration of bee pollination bringing them face-to-face with Queen Bee and a bold new scheme forcing Ben to conquer his new fear of bees!

Team Tennyson enjoy the biggest convention in town, but when a gawky costume store employee finds a familiar-looking helmet in the back of the store and tries it on, Ben is faced with the return of an old foe in a new form: Forever Knight.

While in Tokyo, Team Tennyson learns that Japan's hottest new restaurant is being run by the Bugg Brothers as a nefarious scheme to make loads of money off an unsuspecting public.

At the Sumo Slammers Amusement Park in Tokyo, the mischievous Twain Twins crash a sumo wrestling match to avenge their mother's medal snub years earlier at the Global Games.

Team Tennyson looks to take in the sights of the Shoshone Falls, but when they arrive to find Steam Smythe siphoning off the water, it is up to Ben, Grandpa Max and Gwen to shut down the hydropower plant and save the Falls.

While visiting Lake Erie, a relaxing day at the beach gets all washed up when Ben, Gwen and Grandpa Max come face-to-face with Hex, and his summer intern, Kevin!

After the Rustbucket breaks down Ben Gwen and Grandpa Max find themselves killing time at the local town library but soon scramble to out maneuver Hex as he searches for a hidden ancient artifact.

Team Tennyson trade campfire stories in an anthology-style series that pits Ben against his archrival, Kevin 11, and teaches our hero the power of imagination.

While visiting Carlsbad Caverns National Park the Tennyson's come across the Bottomless Pit a naturally formed pit with no bottom. Ben fights his better judgment to jump in the pit and be the first person to find the bottom until Kevin 11 shows up and starts to goad Ben into a contest to the bottom of the pit!

Team Tennyson faces tough competition at an obstacle race. While Grandpa Max struggles to keep pace with an unbelievably fit rival, Ben and Gwen run into the Weatherheads - who've secretly masterminded this race to test mankind.

Team Tennyson's quest for the best pizza in Rome leads the team to the Bugg brothers and their latest culinary caper, complete with stolen recipes, kidnapped chefs, shrunken landmarks, and a high-speed chase around the Eternal City.

In Rome, Gwen takes Team Tennyson on a self-guided tour of the many ancient sites, but when a distracted Ben accidentally stumbles upon Queen Bee's monumental heist, the hero must work together with his family if he is to save the city.

Ben completely ignores Gwen when she takes him to a family fun center. Meanwhile, Frightwig pushes Zombozo back into a life of crime after he ends up becoming a party clown. Now, both Ben and Zombozo will have to learn that you shouldn't ignore your friends!

At the Mojave Wind Farm in Texas, Max and Gwen plan to set Ben straight on his kooky ideas about how wind works, but instead find the Weatherheads using the towering turbines for their latest nefarious plan.

Lord Decibel traps Team Tennyson inside the CD Library and demands a ransom.

Team Tennyson head to the Okefenokee Swamp to witness the blooming of the Blushing Orchid, something that happens once every one hundred years. But their plans get disrupted when Tim Buktu, trying to make his new "reality" show more exciting, endangers the rare flower and everyone else at the swamp.

Ben and Gwen are excited to enter a skating competition, but when Nanny Nightmare shows up to teach the skater kids some manners by turning them into babies, it's up to Team Tennyson to up their game at saving the day.

When Hex mistakes an exclusive magic club for a top-secret Wizard society that snubbed him, Ben has to figure out how to work around the club's strict code of conduct to stop him without getting booted by security.

Ben's suspicions about his dentist are proven correct when he transforms into the monstrous Toothache.

When Steam Smythe 'time travels' his way into a Renaissance Faire and kidnaps Max, Ben and Gwen must defeat him without breaking character.

Team Tennyson participates in the inaugural ride of the Sonitrain, the fastest train in the world, but when the conductor turns out to be Lord Decibel, Ben must derail his master plan if he is to save his family and the passengers on board the runaway train.

Ben, Gwen, and Max are on the road and are supposed to be taking in the sights. However, Ben refuses to put his video games away, and only the return of Xingo can spur him into action.

Team Tennyson go on a tour of the new Biggie Box Candy Store, but when Toothache breaks out and kidnaps the owner, it is up to Ben to stop the monstrous dentist.

Team Tennyson get more than they bargain for during a visit to Raspberry Park, where what they think are innocent games of chance are actually a revenge plot by Zombozo to steal the Rustbuggy.

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Team Tennyson travel to the new Laser Town VR but when Kevin cheats his way to the top, Ben must team up with former champ Fang if he is going to defeat his souped-up rival.

Ben, Kevin and LaGrange find themselves stuck outside of time after the latter hijacks a supersonic train with a faulty engine, forcing the trio to team up and slow down.

As Team Tennyson fight to stop Dr. Animo from raiding an animal shelter, Ben faces one villain more than he bargained for - King Koil, now Animo's pet.

After Tim Buktu's live stream is mysteriously cut short, Team Tennyson must attempt a rescue mission and break inside the highly confidential Area 55 in order to save him.