Oliver, attempting to protect Slade from the full truth (that Sara Lance was chosen over Shado), allows Slade to believe Ivo is solely responsible.
Slade is different from previous villains; he is intimate with Oliver's past and family, making him far more dangerous.
Oliver realizes Slade knows about the events on the island, breaking the trust they once had. The Past: The Island Flashbacks Arrow: 2Г—15
The scene is defined by extreme psychological pressure, with Slade masquerading as a friend while planning to destroy Oliver’s life, fulfilling his "promise" to make him know absolute despair.
This episode highlights how the serum enhanced Slade’s grief, turning it into a psychotic, unstoppable vengeance. Oliver, attempting to protect Slade from the full
The episode ends with the tension in the mansion at an all-time high, setting the stage for the rest of the season's battle against Deathstroke.
Slade kills Ivo, but his rage is uncontrollable. He decides to kill Oliver, cementing their feud. Why 2x15 is Pivotal The Past: The Island Flashbacks The scene is
The episode flashes back to the island (Lian Yu), showing the specific moment that turned Slade into a monster. After Shado’s death, Dr. Ivo is holding a gun, and Slade—under the influence of the serum—demands to know who was responsible.