When Grandpa Max’s engineer buddy Phil Billings gifts Team Tennyson the Omni-Copter, a state of the art flying vehicle that can transport the Rustbucket for overseas adventures, Steam Smythe takes to the skies to ground Ben and company’s first test flight; but unbeknownst to our heroes, Smythe was sent to battle Ben’s latest alien forms by a mysterious, powerful enemy: the Forever Knight.

Team Tennyson visits Adrenaland Jr., a more safe version of Adrenaland. But when Kevin appears, Ben has to stop him before he destroys the park.

When a new Xingo app mysteriously appears on Gwen's tablet, Ben activates it despite his cousin's disapproval, springing a trap that transports Ben in the animated world and Xingo into the real world.

When Ben and Gwen try to create a cooking video, Kevin starts trying to gain his own following with crackpot conspiracy theories and encouraging the consumption of junk food. The social media war resulting from the two shapeshifters soon starts to escalate into real world conflict.

During one last stop by a toy store before Ben, Gwen, and Grandpa Max's maiden voyage across the Atlantic, Ben runs into an old bully, Kevin 11, who now has new powers. He's able to transform into aliens just like Ben, such as the "bootleg" doppelganger of Cannon-bolt—Wrecking-bolt!

Ben is tasked with cleaning the Rust Bucket, but when he is tricked into letting the villainous and vile Fly Guys steal it, he must chase them down before they create an unstoppable maggot monster.

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The group visit the Buddy's Vision Of Tomorrow exhibit, where Steam Smythe hopes to take a secret weapon to rule the world.

Ben, Gwen, and Max's trip to Niagara Falls is cut short by the horrid Hydromanders - creatures menacing them and their fellow tourists.

Ben and Gwen's camping trip is interrupted by the emotionless Weatherheads - Gust-o, Hail-o, & Shock-o - but a malfunctioning Omnitrix firing out a mishmash of aliens may not be the forecast for success.

Ben and Gwen's camping trip is interrupted by the emotionless Weatherheads - Gust-o, Hail-o, & Shock-o - but a malfunctioning Omnitrix firing out a mishmash of aliens may not be the forecast for success.

Ben must overcome his fear of squids when the Steampunk super villain Steam Smythe attacks a construction site of Grandpa Max's favorite pier.

While trying to film his own indie film, Ben accidentally allows the Bug Gang to go free and when he takes the fight to their hidden lair, Ben has to take on their narcissistic leader - the Ant Queen.

Ben and Gwen are turned into babies by a weird nanny who wants to turn the world into a day care.

While chilling at a monastery with a no-noise policy, Ben can't keep quiet and accidentally awakens a dangerous Dragon hidden in a secret chamber below the hallowed halls - a job that might be too much for even Diamondhead.

When a wizard cos player gets his hands on a real magic wand at Comic Con, Ben enlists the help of Gwen (as Lucky Girl) to help stop Hex from retrieving it by tricking the wicked warlock into thinking she is a possessor of powerful magic herself.

Ben stumbles into Dr. Animo's secret lab - now ruled by his superior mutants, the Alphas - and must help the lesser animals escape while stuck as Stinkfly.

While tailgating at a State U. homecoming football game, Ben teams up with Grandpa Max's old college buddies to keep the crazy clown Zombozo from robbing the stadium blind at halftime.

Gwen, Ben and Max encounter a family who are kind of their mirror selves.

The Tennysons visit Fort Know, but it does not last long till Ben has to fight a monster.

In the heart of Silicon Valley, Ben has to stop Victorian villain, Steam Smythe, from getting an incredible power source sealed in a Tesla time capsule.

Dr. Animo returns with his newest invention, the 'Animerger'.

No one believes Ben when he insists that one of the other patrons, waiting in line at the World of Wet Water Park, is the nefarious Frightwig, disguised as a common girl called Frida.

A man attempting to be a hero ends up misusing his abilities, and Ben has to stop him.

Ben and Gwen decide to race against LaGrange when he crashes a race.