It's up to 15-year old Ben to discover the leader within and, along with his trusty sidekick, his cousin Gwen, and former nemesis Kevin he must create a force strong enough for the ultimate galactic battle!
To celebrate, Parenting Without Tears has teamed up with Warner Home Video to offer you the chance to win one of ten copies of Ben 10: Alien Force on DVD.
With five action-packed episodes and one exclusive feature, Ben 10: Alien Force makes the perfect present for kids this Christmas - available on DVD now.
To be in with a chance of winning Ben 10: Alien Force just answer this simple question:
How many Ben 10 episodes are there on this DVD?
Enter here
Winners will be the senders of the first ten correct emails opened at random after 6pm on Sunday 13 December 2009.
© 2009 Cartoon Network