In California, the American Kennel Club hosts an annual competition, which is visited by nearly 3,000 of the world’s top canines. Dogs and owners from all 50 American states are in attendance, so the competition is stiff. Each year, the strongest five contenders from each breed compete for the title of Top Dog. One dog vying for the crown is Masher. He is a papillon spaniel – a breed that is renowned for its agility. Will Masher best the competition and be crowned winner? Once a year, on the beautiful island of Honolulu, Hawaii, a talented group of defence dogs and handlers gathers for the Hawaiian Islands Working Dog Competition. This challenging contest summons teams from the army, police, marines and air force to compete for the title of Hardest Hitting Dog. With tests of their agility, stamina and obedience, these pooches represent some of the most talented working dogs in the forces. Watch them demonstrate the skills that have saved many human lives in the past. Labrador Lola is a real canine hero. Together with her handler Cristian, Lola helps find victims of earthquakes all over the world, as well as people who have gone missing in the wilds of her native Argentina. Lola can detect alive and dead bodies from hundreds of metres away. Her speed and agility also mean that she can be much quicker at finding people in trouble than humans can. Witness her impressive skills as she trains in a densely forested area just outside Buenos Aires.