NieR:Automata Ver1.1a: Season 1, Episode 4

1 - 4: a mountain too [H]igh

▶▶ Pod 153 - Report:

During the investigation in the Desert Zone, several unique entities not found in previously recorded data were confirmed. Entities confirmed were characterized as "machine lifeforms capable of speech" and "machine lifeforms that closely resemble androids". Details uploaded to the server.

In addition, both units 2B and 9S received orders from Command to search for YoRHa Soldiers.
It appears that contact has been lost with the missing unit during their ground mission.
Origin of black box signal has been detected. Proposal: Begin search for the target at the corresponding point.