Based on the Israeli format the Gordin Cell, the series is a thriller about an american war hero, Alex O’connor, a young CIA analyst specializing in Russian affairs who learns a secret from which his family will be destroyed when everything comes out. He discovers that Mark and Katya, his parents, are Russian spies undercover in the US, while the two are reactivated to carry out a terrorist attack aimed at destroying the US. For the two parents the situation is clear: they betray their country or destroy their family.