The GREEN LANTERN CORPS Returns! Feb 6 2009.

After an appearance at the opening of BATMAN: THE BRAVE AND THE BOLD's fourth episode, the Green Lantern Corps steps up for the main event in episode 10!

"The Eyes of Despero"

Written by J.M. DeMatteis.
The synopsis: In the middle of thwarting a robbery by the Cavalier, Batman is whisked away into outer space. When he arrives on their home world, he discovers The Green Lantern Corps is MIA after a battle with Despero - leaving the entire universe defenseless! To save us all, Batman joins the surviving Green Lanterns, G'Nort, Guy Gardner and Sinestro, to defeat the rampaging tyrant Despero before he turns OA, the living Green Lantern planet into his personal weapon of mass destruction!
Voice actors starring in this episode include:
Deidrich Bader - Batman
James Arnold Taylor - Wotan/Guy Gardner
Kevin Michael Richardson - Despero
Alexander Polinsky - G'nort
Greg Ellis - Cavalier/Dr. Fate
Xander Berkeley - Sinestro/Hal Jordan

Comic Book Resources has two more clips and a bunch of screen grabs for this ep. Check 'em out!!