S1, E102: With the hunt on for Atika’s son, the head of MI6’s Middle East desk Sir Hugh Hayden-Hoyle starts to look into who killed Meshal and why, leading him to be blocked from any further line of enquiry by his boss Dame Julia Walsh on the instructions of the CIA. However, Julia tells him to look in a different direction which means turning his attention to Nessa. As more of Nessa’s past is uncovered, including how she and Atika were kidnapped eight years before in Gaza, Nessa receives a mysterious phone call from a man who threatens to divulge secrets from this time in her past.