Complete story — includes the ending
Palmer and Setrakian devise a plan to lure the Master to Stoneheart headquarters so that Eph, Fet, Dutch, Setrakian, and Quinlan can entrap him in the silver-lined sarcophagus. However, the Master, who has taken a new body, ambushes Palmer and transfers his essence into him, gaining Palmer's memories. The Master retrieves the remaining nuclear bomb from Palmer's vault and revives the mortally wounded Eichhorst. The latter leaves to plant the bomb in the Statue of Liberty, giving Kelly the detonator that is later taken by Zach. Eph and Setrakian meet with Palmer but quickly realize it is the Master and battle him. Dutch activates the strigoi disruption device, crippling the Master; Quinlan, Fet, Eph, and Setrakian seal the Master into the silver-lined sarcophagus. Eph, slightly wounded, stays behind to treat himself, as the others take the sarcophagus to dump it into the Atlantic. Kelly, accompanied by Zach, enters Palmer's office and attacks Eph, forcing him to kill her in self-defense. Enraged over his mother's death, Zach vengefully detonates the bomb. The explosion's shockwave frees the Master from the sarcophagus, and the resulting nuclear debris obscures the sun, allowing the strigoi to walk freely in daylight. Eichhorst leaves with Zach, while Setrakian's group is forced underground to avoid nuclear fallout and rampaging strigoi. Outside amid the chaos, Eph searches for Zach.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of The Strain episodes. HTML formatting and reference markers removed. · Content license