Рёрёс„сђ 4 Сѓрµр·рѕрѕ 7 Сѓрµсђрёсџ 2022 -

Sonya infiltrates Shefner’s apartment looking for a connection to the victim. She discovers missing military books from Volynin's home and a note in Shefner’s diary confirming a meeting with him on the day he died.

Continues to balance her analytical work with complex family dynamics, often leading the group's tactical efforts. Production Details Production Details She struggles with a secret pregnancy

She struggles with a secret pregnancy by Letnev, which she hides from her peers. The season follows the series' established structure, where

The tension peaks when Shefner catches Sonya searching through his personal belongings. Character Arcs in Season 4 often leading the group's tactical efforts.

This season focuses on how the women adapt following the departure of Lieutenant Colonel Proskuira (played by the late Sergei Puskepalis).

The season follows the series' established structure, where every four episodes typically cover one major criminal case. Шифр (телесериал) - Википедия