The Wednesday, May 14 season 2 finale of "Arrow," "Unthinkable," sees Oliver faced with having to make a choice as Slade's army continues its attack on the city. It results in a fight that mirrors the one on the freighter years ago (and just yet another example of why this show has the best stunts and fights on TV). Meanwhile, Thea is faced with a choice herself. Like many this season, "Unthinkable" is one of those episodes that makes you angry that there are commercial breaks.
Fighting an army with an army Roy wakes up in time to have to face Slade's army as himself, no added bonus, but fortunately, Nyssa has returned (who else loved her and Felicity's introductions?) with the League of Assassins, and they're not ones for listening to Oliver's "no killing" rule. After all, "to fight the unthinkable, you have to be willing to do the unthinkable." Isabel is killed, but Oliver, Sara, Roy, Nyssa and League members (and Lance) use the cure to take down the rest of his army as they try to flee the city via a tunnel.
What to do about Slade While Lance thinks the Arrow needs to be the killer he once was after Laurel is taken, Felicity argues that he's wrong. He made the choice years ago to kill instead of using the cure, and this is happening because he made that choice to be a killer. He doesn't have to outthink Slade; he just has to make Slade outthink him. After that, Oliver takes Felicity to the empty Queen Mansion and tells her to stay there and he'll come get her when it's all over. He needs her to be safe, he says, because Slade took Laurel because he wants to kill the woman he loves, but "he took the wrong woman." "Oh," she says. "I love you," he tells her. "Do you understand?" She does.
Then, while in the tunnel, Oliver receives a call from Slade, telling him he missed the point. He has the one he loves, and he'll kill her unless he meets him. "She is quite lovely, your Felicity," Slade says. When Oliver shows up to the meet, Slade has a blade to Felicity's throat, and while he gets Oliver to drop the bow, he walked right into their trap. "I know how it feels to see my enemy so distracted, he doesn't see the real danger is right in front of him," Oliver tells Slade, and Felicity injects him with the cure. Oliver found Slade's cameras and when he asked Felicity, "Do you understand?" he gave her the cure.
Oliver vs. Slade's final (season 2) battle It's been a season of fight after fight that can only be described as epic, but the best sequence has to be Oliver and Slade's past and present fights. In the past, Slade ended up pinned, and instead of curing him, Oliver chose to kill him as he swore he'd make good on his promise, even without the Mirakuru to drive him. In the present, Slade tells him, "To beat me, kid, you're going to have to kill me, but in the moment of my death, you'll prove one thing, that you are a murderer."
Instead, Oliver traps him and locks him away in a cell. Slade says his weakness is that he doesn't have the guts to kill him, but Oliver argues he has the strength to let him live. Yes, Slade helped turn him into a killer when he needed to be one, and yes, he's alive because of him, but he stopped Slade without killing him. "You helped me become a hero, Slade," he says, delivering the final blow. "Thank you." With that, he leaves Slade in the A.R.G.U.S. purgatory on the island, a place where they can use to hold other as well.
Teaming up against A.R.G.U.S. Diggle and Lyla head to A.R.G.U.S. to buy Oliver some time and stop Amanda Waller from leveling Starling City (with help from Deadshot). Amanda then drops a bombshell on Diggle – congratulations, you're going to be a father! - but Oliver comes through before the drone can hit its target, and she calls it off.
The strength of the Lance family After a Mirakuru soldier takes Laurel, Lance is ready to team up with whoever will help get her back, including Nyssa and the League, and is the one to tell the Arrow that he needs to get back into the killing business because Slade and his men are monsters. When it's all said and done, Sara has her goodbyes to say to her sister and her father as she keeps her promise to return to the League, but she leaves Laurel with her jacket, prompting Lance to tell her not to get any ideas. However, the night and the fights with the soldiers catch up to Lance, who collapses from what looks like internal bleeding.
Her father's daughter Remember how the penultimate episode ended with Thea pulling the trigger on Malcolm? Well, she does shoot him, but he's wearing Kevlar and if you had any little bit of hope that he's sane? Well, he's proud that she shot him because it makes her truly his daughter. When Roy calls her, Thea agrees to meet at his place, even as Malcolm tells her that Roy's the same as Moira and Oliver with his secrets, and when she leaves, he tells her he'll be there when she needs him.
Thea and Roy briefly reunite and agree to leave town, but when Felicity texts him that they need him, he leaves her to pack, and she finds arrows under his bed. When he gets home, Thea is gone, and she has left a note explaining she's not coming back and she's not Thea Queen anymore, because Thea Queen was trusting. She doesn't trust anyone anymore, and she's going to be strong. As we see, she gets into a limo with Malcolm.
About that fake out… So Oliver's "I love you" was all about tricking Slade. After securing him in the A.R.G.U.S. facility, Felicity says, "Talk about unthinkable, you and me, I mean," and admits he had her fooled into thinking he meant it. "You really sold it." "We both did," he replies.
Oliver Queen, welcome to… A flashback shows Oliver waking up on a bed after his fight with Slade on the freighter, and men lead him outside to meet Amanda Waller, who says they have a lot to discuss…in Hong Kong?!
"Arrow" will be back for a third season on the CW in the fall. What did you think of the season 2 finale "Unthinkable"?