Ben 10: Alien Force (2008)
S1E13 X = Ben + 2
An extraterrestrial ruler is set on annihilating Earth after his daughter is abducted. To prevent the destruction of the planet, Ben needs to unravel the mysteries surrounding Alien X.
An extraterrestrial ruler is set on annihilating Earth after his daughter is abducted. To prevent the destruction of the planet, Ben needs to unravel the mysteries surrounding Alien X.