Batman [Bruce Wayne]; Alfred Pennyworth; Batgirl [Barbara Gordon]; Birds of Prey [Black Canary; Katana [Tatsu Yamashiro]; Starling]; Nightwing [Dick Grayson]; Red Robin [Tim Drake]; Robin [Damian Wayne]; Betty Park; Bill Keep; Jan Spitz; John Lee; Michael Davis; Miguel Guadalupe; Valerie Venderman; Talons (villains)
A call goes out to Batman's allies to help protect the city officials that are being targeted by the Talons.
Batman [Bruce Wayne]; Nightwing [Dick Grayson]; Robin [Damian Wayne]; Brian; Dr. Jeremiah Arkham; Dr. Kearney (death); Lucius Fox (flashback); Mr. Richards; Mrs. Fries (flashback, death); Nora Fields; Mr. Freeze [Victor Fries] (origin, villain); Penquin [Oswald Cobblepot] (villain)
Mr. Freeze escapes from Arkham in an attempt to bring Nora back to life.