If you asked a group of children what they would want to do the most I can bet you more often than not that the chance to watch Ben 10 Ultimate Alien would be right up there. Ben Tennyson, Gwen Tennyson and Kevin join forces to help fight evil and save the planet. Want to know how they do it? They do this by having a watch-like alien device called the Ultimatrix that allows them to be able to turn in to alien creatures – you don’t need to be 7-year old to understand that is the best superpower ever! Ben 10 Ultimate Alien mixes the dreams of a child wanting to be a superhero with a loveable main character that loves fighting evil. Every child wants to be Ben 10 and every child that misses an episode wants to watch Ben 10 Ultimate Alien online to catch up with it! When I say every child – I mean kids of ALL ages.