When Kentil doesn't arrive home, Sarah searches for him, fails, but is caught by M-Corp agents and is arrested. They accuse her of the failure to apply to give birth to a child.
The penalty for this is abortion, carried out by an M-Corp robot doctor.
In fear of what other crimes they might charge her with, she escapes and crosses into the forbidden zone, a landscape which turns out to be the start of hope.
Although, not everything is what it seems.