Complete story — includes the ending
Felicity returns home from the hospital, trying to figure out her place on the team now that she is a paraplegic. An A.R.G.U.S. agent seeks out John and Lyla Michaels for assistance, but is kidnapped before he can tell the pair anything. The pair goes to Waller, who secretly gives her a portable hard drive that reveals the operative was taken by an organization known as " Shadowspire ". John recognizes the name and recounts first meeting the war profiteering group in Afghanistan. With Andy's help, the team tracks Shadowspire. Oliver pressures Felicity for help, who has started having hallucinations of her hacker past self. Shadowspire infiltrates A.R.G.U.S. looking for the access codes to a project known as "Rubicon", killing Waller when she refuses to help. Oliver and the team, with Felicity's assistance, enter A.R.G.U.S. and stop Shadowspire. Oliver vows to look for a way to cure Felicity's paralysis; and John takes Andy to his house. In flashbacks, Reiter is revealed as the leader of Shadowspire.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Arrow season 4. HTML formatting and reference markers removed. · Content license