Season

When Ben interferes with malicious magician Hex’s quest for the earth-moving Titan Gloves at a swap meet, he inadvertently switches bodies with Gwen!

During a tour of the historic Oldeville, Ben discovers a rare Sumo Slammers card, but when Billy Billion claims that the item belongs to him, Ben soon finds himself battling Billy's advanced drones, which have also seized the Rust Bucket.

While spending time in a peaceful coastal town, Ben faces the challenge of standing against his old adversary Steam Smythe and another of his strange creations, the Clocktopus, and also must face his deep, dark fear of squid.

Ben and Gwen are transformed into babies by nanny-gone-nuts Nanny Nightmare who will stop at nothing to reshape the world in the image of her day-care.

When Ben has to use one of his alien forms to save the Hoover Dam from disaster, he gets some help from tough guy and hero Tim Buktu, but Ben begins to question the "helper's" motives and has to decide if Tim is a friend or a foe.

Ben, Gwen and Max go on a tour of the impervious Fort Knox when Dr. Animo sicks a hungry ani-mutate on the Fort.

Ben and Gwen are excited to attend an Earth Day EDM concert in Portland until the show is hijacked by the sound-manipulating baddy Lord Decibel who uses sound as a weapon to trash the planet.

When Ben transforms into Upgrade to turn the lawnmower into a superfast mowing machine he accidently draws the ire of Bob’s gnome-neighbours.

After stumbling into Dr. Animo's secret lab filled with animals, Ben must formulate a plan that will allow him to set the animals free, but he has to get past the Alphas, the superior mutants that now rule the facility, and he's stuck as Stinkfly.

Ben and Gwen’s camping trip is interrupted by the emotionless Weatherheads but a malfunctioning Omnitrix firing out a mishmash of aliens may not be the forecast