One of the most-talked about podcasts last year was “Serial.” The show’s producers used multiple episodes to examine a difficult topic some might call it a mystery. Last year, “Serial” investigated the murder of a high school student from Maryland in 1999. The producers spoke with friends, family members, students and lawyers who were involved in the case that year. They were asked to remember events leading up to the murder.

Serial had 12 episodes, and according to a CNN.com story, each episode was downloaded an average of 3.4 million times within the first few months. It was the fastest podcast ever to reach 5 million downloads and has 100 million downloads since it came out. The first episode from the new season came out Thursday. The show will report on Bowe Bergdahl, the American soldier who was held captive in Afghanistan for five years. Berghdal agreed to provide information for the podcast. The surprise release of the podcast resulted in the Serial website crashing because so many people tried to download the new episode.