Episode Description: Beware, spoilers! To read - hover over the text.
To find the location of Slade, Oliver turns to the Russian mob. Meanwhile, A. R. G. U. S. goes to the person detained John 6 years ago and asks John's help in catching him. For this operation he will have to unite with his ex-wife and a team of Desota, Shrapnel, and Ben Turner, recruited by A. R. G. U. S. om. Meanwhile, Oliver allows Sarah to help him in the fight against Slade.