Seemingly in the space of a spare afternoon, Jay Garrick and Caitlin Snow manage to knock together what is dubbed a Speed Cannon. I dont know about you, but at times an afternoons worth of work can often result in nothing more than staring blankly into space for some time. Clearly Jay and Caitlin had been hitting the caffeine hard. The Speed Cannon can essentially allow from movement between Earth-1 and Earth-2, and so its time for Jay Garrick to return home and do his best to stop the uber-powerful mega villain known as Zoom, right?! Oh wait, no its not. Caitlin made those puppy dog eyes, and so Jay casually loses track of the maniacal speedster in his own world who is looking to kill him and Barry. Yeah, nice one Jay.