Deducing that the Alien will not kill her because of the embryo she carries, Ripley begs Dillon to kill her; he agrees only if she helps the inmates kill the adult creature first. They form a plan to lure the creature into the foundry's molding facility, trap it via a series of closing doors, and drown it in molten lead. The bait-and-chase plan results in the death of every prisoner except Morse and Dillon. Dillon remains in the mold to distract the Alien, allowing it to tear him apart as Morse pours the molten lead onto them. The Alien is covered in molten metal but escapes the mold; Ripley activates the fire sprinklers, causing the Alien's exoskeleton to cool rapidly and shatter, killing it.