Meet Perla. She's a small dog with a BIG personality and a very impressive roar. When she's adopted by the Ricos, a Mexican-American family in search of a guard dog, Perla quickly makes friends with seven-year old Nico Rico – who needs someone to help him deal with the school bullies.
Soon, Perla has changed the lives of everyone in the Rico family … and found a place in their hearts forever.