While Beatrix sets out on a journey to find answers, Al and the Captain bond, and the others do their best to distract one another.

Beatrix encounters a mysterious figure outside the base.

Al wrestles with eternal questions. Beatrix gets a little too comfortable. Bartholomew tries his hand at engineering. Robert revives an old tradition.

Al tries to come to terms with his digital existence. Bartholomew and Beatrix try to get used to Robert. Robert tries to get used to his new arm.

What went down on the base all those years ago? Beatrix, Bartholomew and Bob all try to make sense of Al’s story.

Beatrice and Robert are tasked with enforcing a brutal new protocol on the base – only to find themselves under siege from a new threat.

As she faces down hordes of “misfires” in the lower levels, Beatrice gets more help than she wants.

Deep below the base, Barty, Robert and Alberta try to locate Beatrice while she faces down her former teammates.