Ep 4. Trouble Helix

Ben and Rook come face to face with a deadly villain known as Khyber. Khyber has an alien pet named Zed, who he uses to hunt down powerful aliens. Khyber is after an alien named the Helix, which has the power to rewrite DNA. The Helix is being kept safe in a high-tech facility, but Khyber manages to sneak in and steal it. Ben and Rook must work together to stop Khyber and retrieve the Helix before it falls into the wrong hands.

As they track Khyber, Ben and Rook encounter a group of aliens known as Galvanic Mechamorphs, or Galvans for short. The Galvans are under attack by one of Khyber's drones, but Ben and Rook manage to fend it off. The Galvans reveal that Khyber is after the Helix, and they too are in danger. Ben and Rook offer to help protect the Galvans and their home, but must first find a way to stop Khyber and retrieve the Helix.

As they continue their search, Ben and Rook come across a group of aliens known as the Incursions. The Incursions are trying to use the Helix to save their home planet, which is being destroyed by a massive solar storm. Ben sympathizes with the Incursions, but knows that Khyber cannot be allowed to get his hands on the Helix. He and Rook work with the Incursions to come up with a plan to stop Khyber and retrieve the Helix.

With the help of the Incursions, Ben and Rook are able to track Khyber to his lair. They sneak inside and find the Helix, but Khyber and Zed are hot on their trail. A fierce battle ensues, with Ben and Rook fighting Khyber and Zed while trying to protect the Helix. In the end, Ben and Rook emerge victorious, and the Helix is returned to the high-tech facility where it is kept safe.

Overall, "Trouble Helix" is a thrilling episode filled with intense action, high-tech gadgets and powerful aliens. It is a great addition to the Ben 10: Omniverse series and showcases the importance of teamwork and perseverance in the face of danger. Fans of the show will not want to miss this exciting and action-packed episode.