1x23 — Arrow

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: Malcolm Merlyn (initially presumed dead after being stabbed by Oliver) and Tommy Merlyn. Arrow 1x23

: On Lian Yu, the flashbacks conclude with Oliver, Slade Wilson, and Shado successfully stopping Fyers from shooting down a commercial airliner, though the victory is bittersweet as they remain stranded. You can find more detailed reviews and community

: Detective Lance, with help from Felicity, manages to disarm the first device located under the Merlyn Global building. However, the second device, hidden elsewhere in the Glades, successfully triggers. : Detective Lance, with help from Felicity, manages

" Sacrifice " is the high-stakes Season 1 finale of Arrow , delivering a tragic and game-changing conclusion to the show's debut year. The episode focuses on Oliver Queen’s desperate attempt to stop Malcolm Merlyn’s "Undertaking," a plan to level the Glades using a man-made earthquake.