When does Butt-Ugly Martians return?

Butt-Ugly Martians is an animated television series co-produced by Mike Young Productions, Digital Content Development Corporation Limited and Just Entertainment. It was sold to ITV on October 2, 2000, for the original television pilot and premiered on CITV in the UK on February 19, 2001. It also premiered on Nickelodeon on November 9, 2001, in the United States. The series is produced using Alias Wavefront Maya 3D software.
The Butt-Ugly Martians (B.U.M.) are forced to invade planets for the evil Emperor Bog. They become addicted to American culture. Deciding not to hurt Earth, they simply pretend to be occupying the planet for Bog.