Grounded

This episode originally aired at the end of a Ben 10: Alien Force marathon on Cartoon Network. Instead of showing just this episode's credits, all the credits from all the aired episodes were combined into one grand set of final credits.

When asked how long it's been Ben's job to fight the DNAlien takeover of Earth, Ben says "five years." Wrong. Ben's been transforming into aliens for five years; he's been fighting the DNAlien takeover for only a few months, more or less. (Hard to determine. Based on the appearances of full moons, it's been, at the very least, two months - but full moon appearances have long since proven themselves to be unreliable in gauging the passage of time in the Ben 10 universe.)