| episode | air date | countdown | title |
| S06E10 | 2018-05-30 | | START | |
| S06E09 | 2018-05-23 | | Jennings, Elizabeth | |
| S06E08 | 2018-05-16 | | The Summit | |
| S06E07 | 2018-05-09 | | Harvest | |
| S06E06 | 2018-05-02 | | Rififi | |
| S06E05 | 2018-04-25 | | The Great Patriotic War | |
| S06E04 | 2018-04-18 | | Mr. and Mrs. Teacup | |
| S06E03 | 2018-04-11 | | Urban Transport Planning | |
| S06E02 | 2018-04-04 | | Tchaikovsky | |
| S06E01 | 2018-03-28 | | Dead Hand | |
|
| |
| S05E13 | 2017-05-30 | | The Soviet Division | |
| S05E12 | 2017-05-23 | | The World Council of Churches | |
| S05E11 | 2017-05-16 | | Dyatkovo | |
| S05E10 | 2017-05-09 | | Darkroom | |
| S05E09 | 2017-05-02 | | IHOP | |
| S05E08 | 2017-04-25 | | Immersion | |
| S05E07 | 2017-04-18 | | The Committee on Human Rights | |
| S05E06 | 2017-04-11 | | Crossbreed | |
| S05E05 | 2017-04-04 | | Lotus 1-2-3 | |
| S05E04 | 2017-03-28 | | What's the Matter with Kansas? | |
| S05E03 | 2017-03-21 | | The Midges | |
| S05E02 | 2017-03-14 | | Pests | |
| S05E01 | 2017-03-07 | | Amber Waves | |
|
| |
| S04E13 | 2016-06-08 | | Persona Non Grata | |
| S04E12 | 2016-06-01 | | A Roy Rogers in Franconia | |
| S04E11 | 2016-05-25 | | Dinner for Seven | |
| S04E10 | 2016-05-18 | | Munchkins | |
| S04E09 | 2016-05-11 | | The Day After | |
| S04E08 | 2016-05-04 | | The Magic of David Copperfield V: The Statue o | |
| S04E07 | 2016-04-27 | | Travel Agents | |
| S04E06 | 2016-04-20 | | The Rat | |
| S04E05 | 2016-04-13 | | Clark's Place | |
| S04E04 | 2016-04-06 | | Chloramphenicol | |
| S04E03 | 2016-03-30 | | Experimental Prototype City of Tomorrow | |
| S04E02 | 2016-03-23 | | Pastor Tim | |
| S04E01 | 2016-03-16 | | Glanders | |
| |
| S03E13 | 2015-04-22 | | March 8, 1983 | |
| S03E12 | 2015-04-15 | | I Am Abassin Zadran | |
| S03E11 | 2015-04-08 | | One Day in the Life of Anton Baklanov | |
| S03E10 | 2015-04-01 | | Stingers | |
| S03E09 | 2015-03-25 | | Do Mail Robots Dream of Electric Sheep? | |
| S03E08 | 2015-03-18 | | Divestment | |
| S03E07 | 2015-03-11 | | Walter Taffet | |
| S03E06 | 2015-03-04 | | Born Again | |
| S03E05 | 2015-02-25 | | Salang Pass | |
| S03E04 | 2015-02-18 | | Dimebag | |
| S03E03 | 2015-02-11 | | Open House | |
| S03E02 | 2015-02-04 | | Baggage | |
| S03E01 | 2015-01-28 | | EST Men | |
| |
| S02E13 | 2014-05-21 | | Echo | |
| S02E12 | 2014-05-14 | | Operation Chronicle | |
| S02E11 | 2014-05-07 | | Stealth | |
| S02E10 | 2014-04-30 | | Yousaf | |
| S02E09 | 2014-04-23 | | Martial Eagle | |
| S02E08 | 2014-04-16 | | New Car | |
| S02E07 | 2014-04-09 | | ARPANET | |
| S02E06 | 2014-04-02 | | Behind the Red Door | |
| S02E05 | 2014-03-26 | | The Deal | |
| S02E04 | 2014-03-19 | | A Little Night Music | |
| S02E03 | 2014-03-12 | | The Walk In | |
| S02E02 | 2014-03-05 | | Cardinal | |
| S02E01 | 2014-02-26 | | Comrades | |
| |
| S01E13 | 2013-05-01 | | The Colonel | |
| S01E12 | 2013-04-24 | | The Oath | |
| S01E11 | 2013-04-17 | | Covert War | |
| S01E10 | 2013-04-10 | | Only You | |
| S01E09 | 2013-04-03 | | Safe House | |
| S01E08 | 2013-03-20 | | Mutually Assured Destruction | |
| S01E07 | 2013-03-13 | | Duty and Honor | |
| S01E06 | 2013-03-06 | | Trust Me | |
| S01E05 | 2013-02-27 | | COMINT | |
| S01E04 | 2013-02-20 | | In Control | |
| S01E03 | 2013-02-13 | | Gregory | |
| S01E02 | 2013-02-06 | | The Clock | |
| S01E01 | 2013-01-30 | | Pilot | |
