Yoshi's Island

The game starts off with a stork carrying baby Mario and baby Luigi across the sea. An evil Magikoopa Kamek emerges, and steals baby Luigi. Baby Mario falls into an island in the middle of the sea called "Yoshi's Island", home to all Yoshis. He lands on a green Yoshi, and Mario and the rest of the Yoshi clan attempt to successfully rescue Baby Luigi and the stork back from Baby Bowser and Kamek.