Ep 13. The Visitor

Ben 10 is an American animated television series that tells the story of a young boy, Ben Tennyson, who gains an extraordinary device called the Omnitrix that allows him to transform into any of ten alien creatures. In season 3 episode 13, titled The Visitor, Ben and his friends are challenged by the arrival of a new alien visitor to Earth.

The episode begins with Ben, Gwen, and Grandpa Max driving through a desert on their way to a motorcross show. Suddenly, they spot a strange alien spacecraft crash-landing nearby. The trio decides to investigate, and Ben transforms into one of his alien forms, Wildmutt, to track down the alien.

Wildmutt soon tracks down the alien survivor, who introduces himself as Xylene. He learns that Xylene is an old female friend of Grandpa Max, who had not seen her since they were in their prime as alien hunters. After a happy reunion, Xylene reveals to them that she is on the run from the same alien race that they had been fighting - the DNAliens.

Xylene explains that she had been traveling on a ship in deep space when she intercepted a transmission from Earth. She was shocked to learn that the Omnitrix had been activated on Earth and was being used by a human. Knowing full well the dangers of the device and the damage it could cause, Xylene decides to come to Earth to retrieve the Omnitrix and take it back to her own planet.

Ben, however, refuses to give up the Omnitrix and decides to confront Xylene. He transforms into Four Arms but is quickly overpowered by Xylene, who reveals that she is an alien of a much higher order and has been manipulating the Ben's alien forms to make them less powerful.

Feeling betrayed, Ben decides to confront Xylene again, this time transformed into Diamondhead. The two engage in a fierce battle, and Ben learns that Xylene was not the mastermind behind his weakened alien forms. It was the DNAliens who hacked into the Omnitrix and modified his forms. Impressed by Ben's fighting skills and bravery, Xylene decides to team up with him and his friends to defeat the DNAliens.

Together, Ben, Gwen, Grandpa Max, and Xylene devise a plan to infiltrate the DNAlien's secret base in the middle of the desert. They encounter a variety of dangerous creatures and obstacles, but they eventually reach the heart of the DNAlien's lair. There, they confront the DNAlien leader, a powerful alien called Vilgax.

In a dramatic showdown, Ben and Vilgax engage in a battle that will determine the fate of the Omnitrix and the Earth itself. Ben uses his alien forms to their full potential, fighting off powerful attacks and evading dangerous traps. Along the way, he learns that he is not alone in his fight against Vilgax and the DNAliens - there are other alien heroes out there fighting the same battles.

In the end, Ben and his team are victorious, having saved the Earth and seized control of the Omnitrix. Xylene decides to remain on Earth to help Ben and his team in their battles against future threats, and they all head off into the sunset, ready for their next adventure.

Overall, The Visitor is an action-packed and exciting episode of Ben 10, featuring memorable alien battles, dramatic twists and turns, and a strong focus on teamwork and friendship. Fans of the series will not want to miss this exciting installment.