The last purification chamber

Gas engulfs domed Ark City. Ethan saves his ex's daughter with the last pediatric pod; his own Lily dies. Ava keeps the body in Room 07. Mara demands it for her daughter; Ethan turns violent in public—door empty; Mara signed 4 min ago. Ethan's the hero; Ava's mad. With dad's credentials, Ava uncovers the setup and races for Lily's bracelet data.