All Available Episode
All Season 4 Episode
1. Chicken In Chichen Itza Part 1: Pyramid Scheme
When the Tennysons visit Chichen Itza, Dr. Amino fuses a chicken and a snake to create a real-life Quetza.
2. Chicken In Chichen Itza, Part 2: The Wages of Fear
3. Ben in Rome, Part 1: A Slice of Life
4. Ben in Rome, Part 2: The Bee's Knees
5. Gentle Ben
6. Funhouse
7. Summer Breakers
8. The Monsters in Your Head
9. Queen of Bees
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.
10. Falls, Falls, Falls
11. The Greatest Lake
A relaxing day at the beach gets all washed up when Team Tennyson come face-to-face with Hex, and his summer intern, Kevin!
12. Mud on the Run
Ben gets a tough lesson on knowing his limits when he competes in a grueling obstacle race, made even worse by the Weatherheads.
13. It's Story Time
After the Rustbucket breaks down, Ben, Gwen, and Grandpa Max find themselves killing time at the local town library but soon scramble to outmaneuver Hex as he searches for a hidden ancient artifact.
14. Cosplay Day
Team Tennyson enjoys the biggest convention in town, but when a gawky costume store employee finds a familiar-looking helmet in the back of the store and tries it on, Ben is faced with the return of an old foe in a new form: Forever Knight.
15. Bottomless Ben
The Tennyson's come across the "Bottomless Pit", a naturally formed pit with no bottom. Ben fights his better judgment to jump in, until Kevin 11 shows up and starts to goad him into a contest to the bottom.
16. Tales from the Omnitrix
Team Tennyson trade campfire stories that pit Ben against his archrival, Kevin 11, and teaches the hero the power of imagination.
17. Party Poopers
18. Wind Some Lose Some
19. Digital Quality
20. Tim Buk-TV
21. Tokyo Fun Part 1: Big Bugg Bash
22. Tokyo Fun Part 2: Slamming It Up
Reboot of the classic Ben 10 series featuring a reimagined Ben and friends as they travel the country during the summer holidays.
23. Growing up is Hard to Do
24. The Hex Factor
25. Sweet Tooth
26. Medieval Upheaval
27. Speed of Sound
28. Xingo's World
29. Tummy Ache
30. Players of the Lost Park
31. De-Fanged!
32. Mock 10
33. Rekoil