Dr. Pol and Charles rush to save a mother mare and foal, but will it be enough? Next, the father-son duo race over to Marshall Farms for a few pregnancy checks. The farmers want to thank their favorite vet by giving him a chance to drive a victory lap in their brand-new racecar. But right as race time finally comes, duty calls and Dr. Pol has to make a pit stop when a dog with a badly slit neck comes into the clinic. Will Dr. Pol make it on time or will his racecar dreams be left in the dust? (thetvdb.com)