Cosmo the kitten with bright blue eyes and tabby stripes, looks just like a tiny tiger - but he definitely doesn't act like one! Shy and timid when he is brought home from Battersea Dogs & Cats Home, soon he and his new owner Megan are the best of friends. One day, Cosmo notices a bluebird nest in a tree in the garden - Mum jokes that Cosmo is only interested in the nest because he wants to catch the birds inside! But when a baby bluebird tumbles from the nest, will gentle Cosmo end up wanting to help or harm it?