The Decoding

After returning to their homes after 17 years, Imaan and Sartaj are trying to adjust to their lives here. Sartaj finds himself a job in the regiment where he can spend his days. Imaan tries to learn about the latest technology and tries to get familiar with it with the help of his son Ayaan. While the POWs are settling down in their now normal lives, their morse code is being decoded by Mrs. Awasthi. As she progresses through, she learns about a certain person named Lala. Who is it? What is this person's connection with the POWs? Has Mrs. Awasthi made a big discovery?