Countdown

In the Nanoverse, Donna Troy and her compatriots are attacked by insectoid creatures using magic.Having captured Trickster and Pied Piper, Poison Ivy is partially fooled by them into believing that a mutual friend had sent them to her.At Zatanna's home, Mary Marvel becomes impatient with the slow pace of learning and provokes a fight between herself and Zatanna.Having revealed he knows Superman's secret Identity, Jimmy Olsen - as Mr Action - tries out for membership in the Justice League.Searching for a cure to his disease, Karate Kid, accompanied by Una, finds the hideaway of Mr Orr and his bodyguard Equus who attacks them. Surprised by Karate Kid's skill, Equus holds Una hostage.Unknown to Mary Marvel, her rage is partly being fuelled by a watchful Eclipso.As the Atom attempts to escape from the insectoids, a mysterious arrival steps in. As Ivy and her captives argue, the mutual friend arrives and is revealed to be Deathstroke.