Black Canary is pretending to be Oracle to protect Barbara, and is coerced into going on a mission to Africa to retrieve a donor heart for Blockbuster from Gorilla City. Her travelling companions are Lady Vic, Grimm and Deathstroke, all of whom have their own agendas and could well turn on one another once the mission is over. Barbara is naturally worried, and has to talk Canary (who absolutely hates computers) through absolutely everything she does. As if that's not enough, they'll be facing Grodd when they get to the City, and although they don't know it, a number of combat-ready gorillas have them all in their sights.