Teen Titans, Vol. 3

Blue Beetle arrives at Titans Tower to find Wendy and Marvin imprisoned. In Gotham, the Titans of tomorrow have imprisoned the Justice League and confronted the Titans of today. The future Titans claim that an attack by Starro is imminent and that, in their past, the League defeated it. Now, however, they are making the Titans fight in the League's stead threatening that if the League's prisons are tampered with they will die. Both teams of Titans breka into groups and attack various villains that have each been compromised by Starro until Robin manages to defeat the Starro-controlled Prometheus. His future self, as Batman, tells him that he needs to make a difference and learn to carry a pistol; Robin manages to get hold of the pistol and hold it to his own head.