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: Reviewers from Decider noted that the purge of nearly all minor characters creates a "final faction" of survivors, streamlining the cast for the final act.

: After being thrown overboard in the previous episode, the boy (Elliot) reappears in a cabinet on the Kerberos , seemingly unharmed but still enigmatic. 1899 1x5

: An ominous ticking sound echoes through the Kerberos , driving hundreds of passengers into a trance. They mutely march to the top deck and calmly throw themselves overboard to their deaths. : Reviewers from Decider noted that the purge

"The Calling" accelerates the series' science-fiction elements, introducing the idea that their surroundings are not what they seem. They mutely march to the top deck and

Critics praised the episode for its "relentless horror" and successful shift into high-stakes genre storytelling.

: Viewers get a full look at Maura's father, Henry, in a modern office equipped with electronics and computer printouts, monitoring the Kerberos . The episode ends with him gazing out at a massive black pyramid that matches the boy's miniature version.

: Survivors, including Maura and Eyk, attempt to stop the march but realize they cannot save everyone. To survive, they resort to tying themselves to sturdy objects or blockading doors until the "calling" ceases.