Jon Sommers is an agent with Mossad.
Cassandra Sashakovich was an agent with an unnamed American Intelligence organization who would later work with Mossad.
Ann Silbee (later Sashakovich) is a highly skilled computer programmer/hacker.
These three people make up the major players, along with a handful of almost as equally important ones, in a series of adventures where each prove to themselves and to others that as the title says, Spies Lie.
Jon Sommers is a 24-year-old Brit. We get a brief introduction to him a dozen years before where we learn that as a teenager he already spoke "seven languages and read five". He lived with his parents in London and was as normal as most teenagers until he learned his parents had died in a car crash. Jumping back to the present, Sommers had just earned his MBA. He was happily engaged to Lisa and looking forward to their future when he learns she died in a terrorist bombing. He also learned that Lisa had really been Aviva and she had worked for Mossad and had been sent to recruit him to work for them as well just like his parents had which he had never known about. After some hesitation and anger about the deception, Sommers will join Mossad.
Cassandra Sashakovich is a 28-year-old Yank. She holds a Ph.D. in economics from Stanford where she also minored in computer science. She had been working for a company helping startups get backing from investors when she learned her fiance serving a tour in Afghanistan had died in an IED explosion. Her life took a temporary spiral down until she was approached by and offered a job with a small unnamed department in the intelligence community. For two years she would perform more than adequately with them until on a mission to Saudi Arabia, her cover was blown, she was assaulted, and she got fired. Shortly afterwards, she would be invited to join Mossad.
Ann Silbee was a Brooklyn born and raised teenage girl when her life turned horrid in a short time. Her mother died. She and her little brother were kicked out of their apartment. Within a week they were assaulted, he was killed and she raped. That was when she ran across Cassandra and would be adopted by her and would soon learn how very, very smart she was with computers.
These three would have their lives entwined over and again in a good many adventures.