When does Ben 10: Alien Force return?

Ben 10: Alien Force is an American animated television series. It is the sequel to Ben 10 (2005–2008), set five years later and taking a darker turn than its predecessor. Ben Tennyson, now a teenager, once again joins the Omnitrix to protect Earth and other parts of the universe from villainous alien activity. The series premiered on Cartoon Network in the United States on April 18, 2008. It ran for a total of three seasons and forty-six episodes.