captures Round 4 of the 2012 Can-Am Grand National Cross Country Series this Sunday for the VP Racing Big Buck GNCC, bringing one full-hour of racing action from Union, South Carolina. Maxxis/Yoshimura's Chris Borich and company kick things off at 4:30 p.m., as Taylor Kiser attempts to continue his winning ways from Round 3. The Ballance Racing Yamaha crew runs into some mechanical issues that throw a big curve ball in the XC1 Pro ATV class. Find out how it all shakes down this Sunday.
Immediately following coverage of ATV racing, the XC1 Pro division hits the famed woods of Big Buck at 5:30 p.m. Factory FMF/KTM's Kailub Russell leads the way in hopes to secure a third consecutive win after rebounding from a shoulder injury in the opening round. AmPro Yamaha's Paul Whibley may have something to say about that, but tune in Sunday at 5:30 p.m. to find out who really makes up the XC1 Pro class podium at one of the most intense rounds on the circuit.
WATCH THIS EPIC EVENT SUNDAY AT 4:30 PM ET ON NBC SPORTS NETWORK