Episode Description: Beware, spoilers! To read - hover over the text.
Oliver has to neutralize a new threat to the city, when in Starling city starts to explode bombs. Felicity discovers the person who is behind this, Mark Sheffner named Shrapnel. Arrow discovers that the next target of Shrapnel – "Evening of Unity" Sebastian blood and tries to dissuade the politician from holding it, but blood refuses.