[s2e1] Paradise Found -

The episode bridges back to the main series narrative in its final moments.

Annie's journey begins on the day of the global cataclysm. The episode details her years of solitude, caring for her terminally ill mother and later a friend, both of whom die from complications related to deep-vein thrombosis (DVT)—a medical condition that previously derailed Annie's career.

Critics have praised Shailene Woodley’s performance for carrying the episode's "long, unbroken takes" and emotional weight. The premiere is noted for its "Lost-style" storytelling, expanding the show's world by revealing that the surface is becoming habitable again, which challenges the necessity of the high-tech bunker civilization established in Season 1.

Link and his group eventually leave for Colorado in search of a rumored underground bunker, unaware of Annie’s pregnancy. The Crossover and Cliffhanger