A sleuth who identifies John Doe’s gets a call from a man presumed dead for years. Is he the baby who disappeared in the 1970s, and what is his connection to a death row inmate and his own nephew who vanished decades later? We’ll review the podcast “Hello, John Doe.”

A decade ago, she failed to get soldiers and detainees to go on the record about Guantánamo Bay. Now, those same people are ready to share their stories about the infamous military prison. Sarah Koenig breaks into Gitmo in season four of “Serial."