Rachel, a highly effective but rogue spy from Israel’s feared national intelligence force Mossad - vanishes without a trace while attending her father’s funeral in London. The only clue to her whereabouts is a cryptic phone call she places to her former handler Thomas. Summoned from Germany to Israel by Mossad, he is forced to retrace her steps, determine what threats she may pose to their operation and at the same time work to protect her.
Born in London, raised in Canada, trained in Germany and embedded in Iran, Rachel’s skill at immersing herself in a new identity makes her an extraordinary operative, growing quickly from surveillance operations to assassination to a key role in a vast espionage effort against Iran's nuclear program. But her undercover existence in the country is threatened when she begins an intense love affair with an Iranian businessman who is of great interest to Mossad.