I'm glad that I avoid spoilers, promo's and trailers. If I paid attention to any of those, I would have been deprived of a pretty cool surprise in The Scientist. Turns out that the 'Scientist' is none other than Barry Allen. For those that are unaware, he is The Flash, another big Superhero in the DC Universe. This episode was pretty big in setting up a lot of things, which actually felt like a Season Finale more than anything. So, this makes the episode even more epic in my eyes. Along with the introduction of Barry Allen / The Flash, we also see the "birth" of Deathstroke when Slade is injected with the serum. Awesome cliffhanger as well. Having Diggle and Felicity kidnapping Barry and bring him to the Arrow's lair in the hope that he can save a dying Oliver is exactly how you end an episode. Can't wait to see what happens next.

This episode SCREAMED backdoor Pilot for what will eventually be the Flash spin-off and I'm 100% on board with it. I'm already there. They just need to film, edit and put it on the air so I can watch it. Casting Grant Gustin as Barry Allen is a great choice, although I do suspect that they are trying to grab fans of Andrew Garfield from Spider-Man fame as they both look a lot alike. I recognized him when it was revealed he was in fact Barry. I just couldn't place where I had seen him before. I had to google his name to realize that he had guest-starred on 90210. Anyway, THIS episode was everything and more and THIS episode points out why Marvel's Agents of S.H.I.E.L.D. is failing big time.