Tricked into going to Ireland by a wicked leprechaun, Astro and the gang are forced to find the Leprechaun King's special pet. Only this pet is not the type of animal any dog should be forced to rescue. It's wicked and cruel, and can make you obey its every command just by purring That's right It's a CAT Our heroes' are sent on a secret mission by the wicked Elf Queen to recover three precious treasures in exchange for the magical cat. But, as you may already know from previous adventures, things are never quite what they seem or work out they way the dogs planned. On this zany adventures Astro and the gang encounter a whole host of magical creatures, stunning scenery and, not to mention, a very polite donkey.