350 riders sit poised on the starting line - ready for a grueling race through Albert Falls Dam Game Reserve. Travis Walker has agreed to record the race on a camera mounted to his bike. Out of nowhere, an antelope, known as a red hartebeest, slams Travis’ teammate, Evan, at approximately 30 miles an hour. The beast’s hoof comes directly down onto his skull. Its entire mass, an average 300 pounds of muscle and bone, focuses into one powerful strike.