Hoping to escape the cold in his backyard, Sparky chomps on his magic bone--only to find himself in snowy Zermatt, Switzerland. He befriends Lena, a Saint Bernard rescue dog with a terrible sense of direction. The two, in search of food, quickly get lost. But Lena and Sparky might just be in the right place at the right time for Lena to complete her first ever rescue mission

When Sparky's owner leaves him with no one to play with, Sparky decides to beat the boredom with a bite of his magic bone. He finds himself in Washington, DC, among statues, a monument that looks like a giant stick, and a big white house with a huge yard (that he isn't allowed to play in). His new dog friend says he's happy roaming the city without his family, but Sparky isn't so sure he feels the same. Tag along as Sparky explores the United States capital--and tries not to get caught

When Sparky's magic bone blasts him to Tokyo, Japan, he discovers a whole new world--one with karaoke, "squishy fishy" and sumo wrestlers His new friend, an Akita named Nanami, guides him around the city, until Sparky loses her in a crowd. But it turns out Nanami isn't just any Akita. She's the queen of the Ninja Dogs--a fierce group who are convinced that Sparky has kidnapped her To make matters worse, the Ninja Dogs have Sparky's magic bone, and won't return it until he leads them to Nanami. It's up to Sparky to reunite the Ninja Dog family so he can return home to his own

With one bite of his magic bone, Sparky lands in the Amazon Rain Forest in Brazil among biting bugs and dogs with . . . webbed feet ? The Bush Dogs declare him their new leader when he saves their home from the metal machines that threaten to destroy the jungle. In fact, the machines have flattened so many other trees that Sparky can't find where he buried his bone Will Sparky ever be able to find his way home?