The past always comes back (S02E04)

S02E01 A singular order S02E02 An operation of risk S02E03 An unexpected visit S02E04 The past always comes back S02E05 When you least expect it S02E06 A thousand and one nights S02E07 New loves S02E08 Dangerous friendships S02E09 A new reality S02E10 Happy Holidays