We've seen today how devastating the right back-up strip in the right issue of Suicide Squad can be.

Well, we now have the details for issue 4, as Rob Williams and Gary Frank create a Harley Quinn back-up story.

In this story, a mission to dispose of old chemical weapons becomes personal for Harley Quinn when those weapons turn out to be Joker toxin! Now Harley must confront the demons of her past while a Joker-ized Rick Flag tries to take her out once and for all.

While the regular comic with Rob Williams, Jim Lee and Scott Williams continues,

And in the lead story, written by Rob Williams with art and cover by Jim Lee and Scott Williams, i t's chaos in Belle Reve when the cosmic contents of the Black Vault are released, causing everyone on the Suicide Squad to turn against each other in a violent rage. Everybody, that is, except for the strangely sane Harley Quinn, who must fight her way through the heavily guarded facility before [REDACTED] can [REDACTED] and [REDACTED] the [REDACTED] forever!

While Wonder Woman #8 is switching out the Greg Rucka/Nicola Scott Wonder Woman Year One storyline in favour of this fill-in issue, by Greg Rucka and Bilquis Evely.

In this tale that spotlights the Cheetah's past, young Barbara Ann Minerva is sent on a quest for answers to the Amazons' most ancient secrets!

DC states,

"The 'interlude' issue arose very organically out of the stories we've been telling in both Year One with Nicola Scott, and The Lies, with Liam Sharp," said Rucka. "The opportunity to focus on Cheetah, on the origins of Barbara Ann Minerva, is one of those decisions that I think is going to add even more to what we're doing." "This story is very thoughtful and human," said Evely, "and I'm trying to bring this to the pages as well. We visit a lot of different places and archaeological reference points, which means I get to have a lot of fun! I think the readers will never see Barbara Ann in the same way again, after what Greg has been doing here! This is a singular opportunity I couldn't pass up." "The fact that we've got Bilquis Evely drawing this issue just makes this all the sweeter," continued Rucka. "I am such a fan, and her work is so consistently wonderful—everything from her characterization to her linework to her laser-sharp storytelling. So when her name came up, I pretty much fell over myself saying yes. One of the greatest joys about working on Wonder Woman has been the privilege of working with such tremendous collaborators, everyone from Laura Martin and Romulo Fajardo Jr. to Jodi Wynne to the entire editorial team and, of course, Nic, Liam, and now Bilquis. I'm really hoping people will enjoy this issue as much as we do."