: The episode centers on the battle for Starling City against Slade's Mirakuru-enhanced army. Oliver is forced to decide whether he can truly be a hero without becoming a killer, ultimately choosing to cure Slade rather than kill him.
: While the finale was highly praised at the time, some fans look back on it with mixed feelings, as it introduced the "Olicity" romantic dynamic that would dominate much of Seasons 3 and 4, which some felt detracted from the show's darker tone. Production Highlights [S2E23] Unthinkable
: Manu Bennett's performance as Slade Wilson is frequently highlighted as a standout, providing a personal and menacing foil to Stephen Amell's Oliver Queen. Arrow Season 2 Finale Review: Unthinkable | Den of Geek : The episode centers on the battle for
: The use of the Mirakuru cure as a narrative device allows Oliver to win a moral victory, solidifying his transition from a "vigilante" to a "hero." Production Highlights : Manu Bennett's performance as Slade