Season 4 - Episode Guide

Team Tennyson visits the monuments of Chichen Itza, but when Ben learns about the possible existence of a mythical creature, the Quetzalcoatl, the hero takes it upon himself to find the feathered serpent himself.

Team Tennyson help transport a caged Quetzalcoatl through the Yucatan jungle, only to encounter a saboteur, La Grange, who hijacks the precious cargo and leads our heroes on a high-octane off-road chase!

After Grandpa Max's super smart 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!.

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 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.

After Ben heroically shuts down the Bugg Brothers latest nefarious restaurant, Team Tennyson looks to enjoy sumo wrestling at the Global Games, but when the Twain Twins crash the event, Ben must stop the polarizing siblings if he is to salvage the family vacation in Tokyo!.

Ben and Gwen are stoked 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 if they are to have any chance 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.

On a trip to the dentist's office, Ben grows uneasy over the dentist's odd behavior and goes into hiding, but when his suspicions prove right, and the dentist transforms into the monstrous Toothache, Ben must save the day!.

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 everyone on board the runaway train.

Ben, Gwen, and Grandpa Max are on the road again and are supposed to be taking in the beautiful sights, but Ben refuses to put his video games away. Only the unexpected 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, Mr. Biggie, it is up to Ben to stop the monstrous dentist and save the candy man and his wondrous candy store.

When Team Tennyson visits Raspberry Park for some R & R, they get more than they bargained for. What they think are innocent games of chance are a revenge plot by Zombozo to steal the Rustbuggy and rob Team Tennyson!.

Team Tennyson travels 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 La Grange 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 fights 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.

The action-packed TV movie will focus around a blast from Ben's past returning to do double the damage on Team Tennyson and planet Earth itself, forcing Ben to go interstellar to save the day. Meanwhile, Gwen and Grandpa Max team up to help protect the world in Ben's absence. But when our boy hero is confused for the villain in space, Ben must figure out a way to get back to Earth to help save it!.