A pair of teenagers discover the skeleton of professional motorcycle racer Tripp Goddard in a geothermal mud bath at a National Park. The investigation centers on the competitive world of motorcycle racing, specifically a high-profile racing family and their multi-million dollar company.
A fan-favorite moment occurs when Hodgins forces Zack to drop several potential murder weapons to see which one creates the correct sound, leading to both declaring themselves "Kings of the Lab". Guest Stars "Bones" The Man in the Mud (TV Episode 2008) - IMDb [S3E10] The Man in the Mud
Suspicion initially falls on Tripp's rival, Danny Fitz, and Danny’s sister, Philippa, but the case is complicated when a second racer dies in a fiery crash on the track. A pair of teenagers discover the skeleton of