Undercover Boss Season 2 Episode 5 (Undercover Boss s02e05) with title “Nascar” aired on Sunday, October 24th 2010 at 09:00 pm via CBS Network.
Here is summary for Undercover Boss Season 2 Episode 5 :

Steve Phelps, Senior Vice President and Chief Marketing Officer for NASCAR, the sanctioning body for the #1 spectator sport in the U.S., goes undercover with one of the sport’s pit crews, participating in an exhausting training session, and also struggles to keep pace working alongside a ground’s crew preparing for the “Daytona 500″.