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Next airing Wed Aug 30, 10 a.m. ET

Hog Days of Summer

It's one of Michigan's hottest summers on record, and the sweltering heat is taking a toll on both Dr. Pol and the local farm animals. Dr. Pol and Charles hope to save a newborn calf with pneumonia, but the thick blanket of humidity covering the area makes their mission even more difficult. Meanwhile, Dr. Brenda and newcomer Dr. Sandra struggle to help a stubborn pig give birth on a brutally hot day.