Back home, Oliver and Diggle are forced to set aside their fractured relationship to take on , a metahuman assassin hired by H.I.V.E..
The emotional core of the episode follows Laurel and Thea’s journey to Nanda Parbat. Laurel is determined to use the Lazarus Pit to bring her sister, Sara, back to life, despite warnings from Malcolm Merlyn that she will return forever changed by a relentless "bloodlust". [S4E3] Restoration
: Horrified by the perversion of life, Nyssa destroys the Lazarus Pit, ensuring it can never be used again and setting up a permanent rivalry with Malcolm. A New Threat in Star City Back home, Oliver and Diggle are forced to
: The battle serves as a turning point for Oliver and Diggle, who finally begin to rebuild their trust while facing Damien Darhk’s expanding influence. Evolution of "Bloodlust" : Horrified by the perversion of life, Nyssa