When a dangerous criminal from Lance's past escapes from prison, Felicity offers herself up as bait so Arrow, Diggle and Lance can capture him...but plans go awry.

The Count has a new scheme to turn Starling City's residents into clients by addicting them to a new drug and then selling them Vertigo to cure it. among those stricken are Diggle and DA Donner, who collapses in the middle of presenting his case against Moira.