It is in Ben 10 season 4 episode 8
Hope that helped
(what I mean is when Ben and Gwen are little)
http://www.ben-10.net/media/ go to this exact site and download the episode.
Kenneth Tennyson, usually called Ken or Kenny, is the son of Ben Tennyson and Kai Green. He appeared in the episode "Ken 10", which showed one of the possible futures (not the same of the Ben 10: Alien Force timeline).
die ____ On your TV here http://clip.vn/watch/Ben-10-EP-49-Ken-10,cQb but you have to wait
Ben 10 Alien Force Episode 14: Darkstar Rising
no sorry but there is ben 10 alian force
And Then There Were 10...
watchben10.net
Ben had a car in Ben 10 Alien Swarm (Season 3 Episode 10).. But in further episodes it was not shown. Ben has got a car from begining of Ultimate Alien Series.
He's in Ben 10:The negative 10.he's also in the beginning of Ben 10 Secret of the Omnitrix
Ben 10 Aliens Force has not yet come to a series finale episode.
Ben 10 Ultimate Alien, Season 1, Episode 1 "FAME".. She kisses him on cheek.
"The Ultimate Enemy Part 2" is the Final episode of Ben 10 Ultimate Alien.