Professional stunt rider Aaron Colton creates his own bike-build challenge, taking it upon himself to buy, build, and race a decade-old bike at 2016 Red Bull Day in the Dirt all in the span of 10 days. Episode 1 of the two-episode miniseries chronicles Aaron’s search for a Craigslist gem, then the build process as he takes his YZ125 from dust-covered garage fodder to pristine race machine.