Julie returns from a tournament acting overly compliant and eager to please Ben. It is revealed that she is actually an disguised Elena Validus. Episode 38: "The Ultimate Sacrifice"
(Note: Episodes 45–52 in syndication are often listed differently or compiled as special features in some regions, but the core narrative concludes at Episode 44/52 depending on the production block. Below are the remaining episodes produced in the block.) ben 10: ultimate alien all episodes
– Cash and JT start a web show claiming they are the brains behind Ben's heroic deeds. Julie returns from a tournament acting overly compliant
Adds organic missile launchers to his shoulders. ben 10: ultimate alien all episodes
Ben 10: Ultimate Alien All Episodes - A Complete Guide to the Series