TV: Blue Bloods 3x10 Promo "Fathers and Sons"

"Fathers and Sons" — When two motorists driving gas-guzzling cars die at the hands of a sniper, Danny and Kate are put on the case of what the city believes is the work of a radical environmental serial killer. Meanwhile, a bicycle accident sends Danny's son Sean to the hospital with a life-threatening injury, on BLUE BLOODS, Friday, January 4th on CBS.