“Flash of Two Worlds” is episode two of season two of The Flash.
In the previous episode, “The Man Who Saved Central City”, Barry had taken out a meta-human called Atom-Smasher, Al Rothstein. Rothstein had previously been found dead. Just before Atom-Smasher died, he told Barry that he was promised that he would be taken home, if he only killed Barry. The person who told Rothstein this is called Zoom.
Harrison Wells – Eobard Thawne – had also left a USB drive for Barry, in the event of his death, in which he confessed to the murder of Nora Allen, Barry’s mother. Which meant that Barry’s father was finally released from prison. Barry finally accepted that he couldn’t work alone, and so everyone is back together again. S.T.A.R. Labs is safer than ever, with upgraded security – so that people just can’t waltz in and out as they used to. Famous last words as someone did exactly that. He said his name is Jay Garrett and that their world is in danger.
Garrett opens the episode saying that he will explain. He says that he knows all of their names, and that the singularity caused a breach between his world and theirs, a portal. There were two Al Rothsteins because one was from his world. According to Jay, in his world Jay is a speedster and he is known as the Flash. There is another speedster, called Zoom – a familiar name – who is fast, perhaps the fastest of all, but evil, an unstoppable demon with the face of death. Which seems a tad hyperbolic.
Jay was fighting Zoom, but he lost and Zoom was just about to kill him when the singularity opened a portal, first sucking through Jay’s helmet and then him. Now, in “Fast Enough”, this helmet came through the portal as Thawne was waiting in his time machine. Thawne said that this was his cue to leave, so did he know what was happening?
In this world, Jay is powerless and he’s unable to return home. He admits this all sounds unbelievable. Elsewhere in Central City, a portal opens and what is presumably Zoom exits, bringing another man with him. Zoom tells the man that, if he wants to go home, he simply has to kill the Flash.
Caitlin is examining Jay; Barry is not inclined to instinctively believe him. According to Jay, he gained his powers when, whilst he was working in his lab on a way to purify heavy water without any residual radiation, there was a blinding light and he fell into a coma. When Jay woke up, he says he could run almost as fast as the speed of light (no speedster appears to have come close to that yet).
Iris wants to know if this idea of parallel worlds is possible. Professor Stein says, essentially but with more words, yes. Joe doesn’t grasp this so both Cisco and the professor try to explain. It doesn’t help. Dr Stein uses diagrams to try and help. It still doesn’t. Joe says he’s having enough problems trying to grasp time travel, so leaves for the precinct for the moment.
Caitlin says that Jay does show a lower pulse than normal and a healing ability, but no evidence of the Speed Force. She also ran what was essentially a lie detector test (and, perhaps, some other unnecessary tests too) on Jay under cover of the other test, and he passed.
At the precinct, Joe is approached by Officer Patty Spivot. She wants to join Joe’s Anti Meta-human Taskforce, but he tells her that there is no taskforce, because everyone quit. Joe asks Officer Spivot if she realises that meta-humans have powers, and if she knows what happened to his last partner. She says she does, and that Joe’s partner before that died too, but the one before that lived, so she’s sure their deaths are nothing to do with Joe. Okay, it does sound bad when put that way.
Barry gets called to a fire, and after putting the fire out he is attacked by a meta-human, the man Zoom brought through. Who appears to be able to turn into sand. When Barry turns up at the crime scene afterwards as Barry, not the Flash, Officer Spivot says she’s a big fan of his. As Barry – not the Flash, she doesn’t know that’s who he is. Spivot is determined to join the taskforce and keeps working on Joe; Barry also seems to get along with her. The fire was set deliberately and, given what happened, probably to lure Barry out.
Barry is still having problems with trust, given what happened to him with Thawne/Wells. Jay says that he can help, but Barry wants more proof that he can be trusted. Barry also wants convincing that there are multiple worlds; according to Dr Stein, it’s possible, but they haven’t proven it as yet. If there is a breach, the professor says that it will need to be closed, so he and Cisco work on a way of detecting them. According to Jay, the meta-human that attacked Barry is called Sand-Demon. Cisco is having more visions, and starts exploiting them, but he doesn’t want to discuss them.