Following the epic events of the DC Universe-spanning crossover event 'Robin War', the Robins are tired, tested and could use at least a little break from the non-stop action of the world of crime-fighting and superheroics. The only trouble is, the villains of Gotham see the aftermath of the Robin War as the perfect opportunity to strike the worn out and weary teen wonders. One particularly sadistic new force of evil has made it their mission to destroy the Robins, one by one. This new movement laughs in the face of justice. They believe in anger. They believe in fear. They believe in chaos. They are - JOKERS!