When you see a coo, you will be tempted to give it a treat. Coos are adorable, peaceful, kind of silly. But don't feed the coo! If you feed one, they will all come. So begins a cautionary tale that details the fallout when a little girl decides to share some bread with a coo (a.k.a. pigeon). From the park to home to karate practice, the coos follow our generous-but-foolish girl who didn't heed the warning. Because when you give a coo a crumb - the entire population of coos will come too! But fret not: our plucky little heroine will discover that even the biggest of problems can be solved with a little determination.