"Battleground: Oa!"
The Guardians of the Universe and Green Lantern Hal Jordan are prisoners inside of the Central Power Battery, which is now controlled by the Weaponers of Qward. While hope fades for the Green Lantern Corps, the entire corps brings their full might to battle Qward itself, with the intention of rescuing the Guardians and the Central Power Battery.
Note: Stel is in a one panel flashback.