At animal arts, Mandy hope helps her prepare your parents treat animals in all shapes and sizes. Even outside the clinic, Mandy can't resist helping any animal in need. When Mandy ask Rachel farmer to look after a neighbor's Guinea pigs, Rachel's thrill. But her parents see how responsible she is, she sure they'll let her have one of her own. But then Rachel loses one of the babies, and she's worried she'll never be allowed to have a pet. Can Mandy and James help her find the missing Guinea pig?