CIA cryptographer Charlie Heller is restoring an old Cessna as a present from his wife, Sarah, who leaves for a business trip in London. At the CIA’s Decryption and Analysis division, Charlie has befriended a field agent, Jackson O’Brien, code name “The Bear”, and an anonymous source, code name “Inquiline“. Classified files from Inquiline reveal Special Activities Center Director and Charlie’s boss, Alex Moore, disguised politically-motivated drone strikes as suicide bombings. Charlie is subsequently brought to CIA Director Samantha O’Brien, who informs him that Sarah has been killed in a terrorist attack.