The Justice League are fighting Gorilla Grodd's Secret Society. Wonder Woman is battling Sinestro when Grodd orders The Parasite to drain her unconscious. Meanwhile Hawkgirl, pursuing Killer Frost, is knocked out by a sleeping gas trap. The villains pile up the two unconscious heroines, and later on we see them displayed in stasis tubes.

Note: Red had already put part of this scene up in http://www.sleepycomics.com/show.php?id=1664, but the video link in that one is dead, and there is only the one screen cap, so I felt it was OK put up the rest of the story. Didn't mean to step on your toes, Red!

Besides, how often do you get to see a good superheroine pileup? Not enough, I say.
Source: DVD