The title, "Look for the Light," is a direct reference to the : "When you're lost in the darkness, look for the light" . The finale subverts this hopeful phrase, as Joel’s "light"—his love for Ellie—leads him to commit a morally ambiguous and violent act that arguably leaves the rest of humanity in the dark. Watch & Explore Stream the Episode: You can watch the finale on HBO Max .
Refusing to lose another daughter, Joel launches a unilateral rescue mission through the hospital, killing Marlene and several Fireflies to save Ellie.
Look for the Light: The Last of Us, Episode Nine - Black Gate