Search Engine is hosted by PJ Vogt, who opens each episode with a specific question and works through it using either a one-on-one interview or a longer reported narrative. Some episodes are conversational interviews with a single expert, such as physician Rachel Bedard on GLP-1 drugs or Harvard public-finance professor Linda Bilmes on the cost of the Iran conflict. Others are narrative documentaries built from field reporting and testimony, including a two-part history of driverless-car technology and an account of Boston's political fight over Waymo. Guests are typically journalists, academics, or people with direct professional experience in the topic at hand, including author Dan Wong on Chinese governance, journalist Ezra Klein on political polarization, and reporter Joseph Cox on the FBI's Anom encrypted-phone operation. Recurring subject areas include public health and pharmaceuticals, war costs and public finance, geopolitics, labor displacement from automation and gig-economy platforms, and US political polarization. The show occasionally covers true-crime and surveillance-technology stories, framed as investigative narrative rather than procedural crime recounting. Producer Emily Maltare contributes reporting to some episodes, and Vogt periodically references other podcasts, including This American Life, within episodes. Individual episodes run roughly 40 to 70 minutes and mix narration, interview tape, and sponsor reads. The show suits listeners who want explanatory, deep-dive journalism on policy, technology, and health topics rather than headline-level news coverage. There is no fixed weekly beat; each episode is organized around whatever question the reporting team pursued that week, so subject matter varies more than shows built around a single genre.