The prank war to end all prank wars has erupted in Titans Tower, but for some reason, Beast Boy seems to be out-pranking everyone-he even dodged Cyborg's barrage of stankballs. It's like he knows what pranks are coming before they even happen. That's because, unknown to the other Titans, Beast Boy has a new power: he can smell into the future! But what happens when Beast Boy gets a whiff of...the apocalypse?!