Ransom When a U.S. senator’s (Tzi Ma) daughter is kidnapped, Eric (Luke Roberts) and the team’s investigation leads back to the politician, who has dark secrets. 8 p.m. CBS
Dr. Jeff: Rocky Mountain Vet Two sisters rush their tiny dog to the clinic after the pup sustains a life-threatening brain injury in this new episode. 9 p.m. Animal Planet
Planet Earth II This new episode of the documentary series explores the lives of mountain animals, creatures hardy enough to survive on high peaks. Among them are a snow leopard mother and cub who become trapped between angry rival males, and a bobcat who...