New Arrow Midseason Promo Offers A Glimpse At The Flash’s Origin

A new extended promo trailer for the Arrow midseason finale episodes “The Scientist” and “Three Ghosts” (airing December 4 and December 11, respectively) feature a bit of Grant Gustin as Barry Allen… but also, it appears we get a look at the accident that will ultimately give him his Flash-y powers.

Check it out, and be sure not to miss Arrow tonight at 8PM (ET) on The CW! Here’s everything you need to get yourself prepared.