Board Thread:Ben 10 Discussion/@comment-4969948-20160930222056/@comment-1478058-20161001202428

PokeRob wrote: So does this take place some time after Ben gets the watch? Seemed weird to me that Ben already knew who Hex was and how to use all the different aliens and etc.

Kinda a bummer, having him learn about the aliens and such was one of the better parts of OS.

Dude it's Episodes 3 and 4. This was stated directly above.