light music) - [trace] 25 years of the idc, and no better place to celebrate it than right here at purina farms. there he goes, sensational sounders (crowd cheering) once again does it. the green flag falls at the texas motor speedway. dogs from the central us compete in the purina pro plan. 15 miles of uninterrupted beaches, huntington beach california, host once again to the purina pro plan incredible dog challenge. (people cheering) over the 31-foot mark, 31 feet six inches. and look at that. - wow. - 29-7-9 actually. another clean run. this is amazing! 30.04, so they are now on the top. (dramatic music) and welcome in everyone to purina farms outside of st. louis, for the national championship finals. trace worthington, alongside shellene cockrell, and shawn smith, who dives right into the details before large dog agility with our head judge, smitty. - i'm here with kama, our judge in the agility competition. it's the national championships, we wanna make a difficult course, and you did just that. talk about the challenges on this course real quick. - absolutely. i have a few different chal

light music) - [trace] 25 years of the idc, and no better place to celebrate it than right here at purina farmsders (crowd cheering) once again does it. the green flag falls at the texas motor speedway. dogs from the central us compete in the purina pro plan. 15 miles of uninterrupted beaches,

tense music) - [trace] 25 years of the idc and no better place to celebrate it than right here at purina farmse up of 10 miles of uninterrupted beaches, huntington beach, california, host once again to the purina pro plan incredible dog challenge.