Ransom Five teenagers playing a smartphone game are lured into a deadly trap in an abandoned building in France. Luke Roberts, Sarah Green and Brandon Jay McLaren star in this new episode, and Camille Langer, Boyd Ferguson, Britta Meier, Simon Holman and Logan Smythe guest star. 8 p.m. CBS
Dr. Jeff: Rocky Mountain Vet A disabled war veteran’s German shepherd has a broken elbow in the first of two new episodes. 8 and 9 p.m. Animal Planet
Planet Earth II This visually stunning six-part series reaches its season finale with an episode devoted to “Cities,” an environment where many animals have learned to...