Dogs – they love us, protect us, and would do anything for us.But some clever canines are taking that dedication to extremes, doing everything from sniffing out crimes to saving lives and helping humans heal from PTSD. Welcome to the world of !Over two episodes, we meet a range of incredible hero hounds, seeing them in action as they use their training and talents to make the world a better place for humans and other animals. And we explore the ground-breaking techniques that have turned these super pups from loving pets into something even more special.