<p>In the United States over 300,000 children go missing every year. Also, the National Park Service manages over 4,700 underground caves. We investigate children going missing in National Parks, Crater Lake, Rocky Mountain, and Yellowstone. Each case has its own strange details, massive search efforts, and unanswered questions that continue to fuel speculation</p><p>Watch the full episode on YouTube:<br>▶<a target="_blank" rel="noopener noreferrer nofollow" href="https://bit.ly/TheoriesOfTheThirdKindYT"> https://bit.ly/TheoriesOfTheThirdKindYT</a></p><p>Support the show + unlock bonus episodes:<br>🎧 300+ bonus video &amp; audio episodes<br>▶<a target="_blank" rel="noopener noreferrer nofollow" href="https://theoriesofthethirdkind.supercast.com/"> </a><a target="_blank" rel="noopener noreferrer nofollow" href="https://theoriesofthethirdkind.supercast.com">https://theoriesofthethirdkind.supercast.com</a></p>