"Welcome to Eclipso"
This story takes place in-between the events of Justice League Vs. Suicide Squad #5 and 6.
*A "JUSTICE LEAGUE VS. SUICIDE SQUAD" tie-in! It's the day no one saw coming when Harley Quinn finds herself the protector of Gotham City, repelling a brutal assault from the super-villain threat of [REDACTED]. *Source: dccomics.com