The company behind the tank debt is owned by the British government - International Military Services. Even today, it may hold the key to Nazanin Zaghari-Ratcliffe’s release. Show more
Negotiations between the UK and Iran to settle the debt and allow Nazanin to return to her family take a new turn. But the United States creates a fresh obstacle to her release. Show more
In 2016, the United States secured the release of some of its citizens imprisoned in Iran. Did it lead to Nazanin's imprisonment? Her fate and the debt issue finally collide. Show more
Richard Ratcliffe, Nazanin's husband, begins his public campaign to win her freedom. And the British government explores some creative options for paying off the tank debt. Show more