In "Arrow" episode "Unfinished Business," Oliver regrets his decision to not completely finish off The Count when he had the chance. Tommy is still struggling with his best friend's alter ego, and Diggle is distracted by the return of Deadshot.
Detective Lance visits Oliver and Tommy's nightclub after a woman was killed nearby. She had apparently wandered out into traffic after getting high on what looks to be Vertigo. Lance wants to know if they are selling it in the club, and Tommy assures him he knows nothing about it.
Arrow and Lance both decide separately to visit The Count in the mental hospital, and both discover the same thing. The man is completely out of his mind, agitated and spouting nothing but nonsense. As a plan B, Digg goes onto the street to buy some Vertigo, so they can track the money. Arrow drops in on a higher-level dealer selling the drugs to addicts, and breaks up the party, but the unseen boss in a nearby car gets away.
Digg goes off the reservation
Digg heads off on his own mission to meet a government agent friend. Felicity's found out some information on who paid for Deadshot's hits, and Digg passes it along to his contact, explaining that she has the resources to track the assassin down. While he's gone, he ignores calls from Felicity.
Turns out Arrow needed some help at the city aquarium, where one of the Vertigo druggies has gone crazy and pulled a gun on the other visitors. Oliver had cooked up a possible antidote for the Vertigo, but before he can use it, the hostage-taker dies of an apparent overdose. Oliver is angry when he meets up again with Digg, and tells him that the city falling apart is more important than Digg's personal vendetta.
Tommy is a suspect
Meanwhile, Lance can't ignore the trail of clues leading to Tommy and Oliver's club. He discovers $10,000 missing from the club's accounts, which it turns out Tommy used to bribe an inspector. Lance shows up to search the place, but Tommy tells him to come back with a warrant. Oliver is there when the detective returns, and is nervous when the police head down to the basement. Lance is disappointed to find nothing but storage, and Oliver is relieved that Tommy cleared out Arrow's lair while he was gone.
Tommy is furious with Oliver after Lance leaves. He doesn't like how his friend actually considered he might be involved with bringing drugs into the club. He thinks he's changed for the better, and Oliver the killer vigilante has no right to be looking at him with suspicion.
Vertigo's maker revealed
The Count has reportedly escaped from the hospital, but when Felicity discovers that the victims died from an allergic reaction to an anti-psychotic, they all realize their villain may have never left. Arrow goes to investigate, and finds The Count in a near vegetative state. He gets knocked out by an unseen assailant, and when he wakes, finds himself strapped to a chair.
The Count's doctor and an orderly apparently decided to analyze their patient's kidneys for the remnants of Vertigo, and used the formula to concoct their own batch. They faked The Count's escape to attempt to draw suspicion away from the hospital, but now that Oliver has tracked them down, they have to kill him. They force him to drink a beaker full of Vertigo.
Oliver holds back
Digg arrives to break up the party, and Oliver gets free and stumbles over to jab himself with his arrow full of antidote. Digg kills the orderly in a fight, and Oliver takes off after the fleeing doctor. The doctor threatens him, knowing there's no way he can fire an arrow accurately with his vision blurred by the drug. Oliver loads three arrows and takes him down with one that finds the mark.
Oliver returns to finish off The Count once and for all, but faced with the blank eyes of a sick man strapped to a chair, he realizes he's not that cold a killer anymore.
Oliver attempts to set things right
Back at the club, Oliver apologizes to Tommy, but his friend isn't interested. He tells Oliver that he's not interested in running a business that's merely a front for Arrow's murderous activities, and he quits. In a twist of irony, he goes to ask his father for a normal, 9 to 5 job, and Malcolm is overjoyed to have him.
Oliver reconciles with Digg, grateful that his friend backed him up when he needed him to. He then agrees that it's not all about him, and if getting Deadshot is important to Digg, then it's important to him. The two start work together.
The birth of Arrow
In this week's flashback, Yao Fei's daughter Shado starts training Oliver by getting him to continuously slap at a bowl of water. While he's repeating this monotonous task, she tells him that Yao Fei was set up by the Chinese government, taking the fall for something he didn't do. Now Fyers wants to do the same, making Yao the scapegoat for whatever he has planned, and he'd used Shado as leverage.
When Slade and Oliver express that this training may be taking longer than they have, Shado says that Oliver is ready for the next step. Turns out all that water-slapping has made his hand strong enough to control the tension on the bow. Arrow is ready to be born.
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