Will Polvoroso survive his daring rescue from this strange island? The story of Polvoroso, a coqui frog from the rain forest of Puerto Rico. He must endure the dangers ever present in his daily life and conquer his fears as he embarks on a perilous journey to rescue his friends, who have been transported to a strange island, four thousand miles away. This is a story of courage, loyalty and perseverance. The story of Polvoroso, a coqui frog from the rain forest of Puerto Rico. He must endure the dangers ever present in his daily life and conquer his fears as he embarks on a perilous journey to rescue his friends, who have been transported to a strange island, four thousand miles away. This is a story of courage, loyalty and perseverance.