In 2022, a TikTok creator who identifies herself as "Kala" began digging. What followed was an increasingly viral series of TikToks chronicling the efforts of Kala, who some on the internet dubbed "tunnel girl", as she excavated and constructed a tunnel system under her suburban home. Her more than half-million followers watched and weighed in with support, suggestions and at times, concern. That is, until a stop-work order halted the project in its tracks late last year.

Producer Katelyn Harrop joins Endless Thread hosts Ben Brock Johnson and Amory Sivertson to look at yet another tunneling phenomenon that has taken the internet by storm.