This is the fourth episode of Radiolab's "Swimming with Shadows" series, focusing on sharks. The episode begins with Alison Kock's life-altering discovery of aerial photographs of white sharks in a car's trunk. These photos led her to False Bay, a renowned white shark habitat. Here, these sharks were once the undisputed top predators. However, the episode explores the mysterious disappearance of these apex predators. The episode features reporting by Rachael Cusick and is produced by Simon Adler and Maria Paz Gutierrez. Original music and sound design contribute to the audio experience. Fact-checking and editing were handled by Diane A. Kelly and Pat Walters respectively. Listeners are encouraged to sign up for the Radiolab newsletter and support the show. The episode also highlights the show's social media presence and email address. The production is supported by various foundations that fund science programming.