The backbone of this loving family is Ishaan (Mohammed Iqbal Khan) and his wife Preet (Mona Singh).

Ishaan has constantly been in touch with a girl which led to the belief that he has an extra marital affair.

Ishaan, in fact, is a spy from a neighbouring country Pakistan, Rizwaan Ahmed Khan, who is brainwashed into thinking that his parents were killed by Indian agents.

Ishaan/Rizwan and Preet put up a facade of being a happy married couple while doting on the real Ishaan's daughter Kavya (who survived the tragedy).

Later a grown up Kavya writes a book named A Tale of Two Countries which was based on the story of Riwzan-Preet.