Brainiac-1 attempts to contact Supergirl at the Fortress of Solitude, but for what nefarious purpose?  No matter what he has planned, things are about to go from bad to worse as Supergirl heads on a collision course with the Batman Who Laughs!  He's targeted Superman as part of his plan to infect heroes and transform them into their twisted Dark Multiverse counterparts — but Supergirl gets caught in the crossfire, and the Year of the Villain stakes get even higher!