Ep 21. City of Blood

Arrow season 2 episode 21 is named City of Blood. The episode begins with Oliver Queen, AKA the Arrow, dealing with the aftermath of Slade Wilson's attack on Starling City. The attack has left many dead and injured, and Oliver is struggling to pick up the pieces. He is grappling with feelings of guilt and despair, as he believes that everything that has happened is his fault. Meanwhile, the city mourns the loss of its Mayor, Sebastian Blood, who was killed by Slade in the previous episode.

As the city reels from the attack, Oliver begins to spiral out of control. He becomes paranoid and begins to push away his closest allies, including Roy Harper, Diggle, and Felicity. He is consumed by a desire for revenge against Slade, and is willing to do whatever it takes to stop him. This puts him at odds with his friends and family, who are worried about his mental state.

At the same time, Laurel Lance is struggling to deal with the loss of her sister, Sara. She blames herself for Sara's death and is consumed by grief. This leads her to turn to alcohol and drugs, which only makes things worse. Her father, Detective Lance, tries to help her, but he is also dealing with his own pain and guilt over the loss of his daughter.

As the episode progresses, Oliver's mental state deteriorates further. He begins to see visions of Slade everywhere he goes, and becomes increasingly reckless in his attempts to track him down. This leads to a confrontation with Detective Lance, who warns Oliver that he is putting himself and others in danger.

Despite his friends' efforts to stop him, Oliver continues to pursue Slade. He tracks him down to an abandoned factory on the outskirts of the city, where the two engage in a brutal fight. The fight is intense and visceral, with both men sustaining serious injuries.

In the end, Oliver emerges victorious, but at a great cost. He is badly wounded and his mental state is even more fragile than before. He is forced to confront the fact that his obsession with Slade has consumed him, and that he needs help to overcome it.

City of Blood is a tense and emotional episode that explores the aftermath of a devastating attack on Starling City. It delves into the psychological toll that such an event can have on the survivors, and how they cope with their pain and trauma. The episode is anchored by strong performances from the cast, particularly Stephen Amell as Oliver Queen and Paul Blackthorne as Detective Lance. Overall, it is a gripping and powerful hour of television that showcases the best of what Arrow has to offer.