Seven-year-old Isabel is an adopted, only child, who lives with her single mom and her nanny, Rosa. Isabel's best friend is Zoë. Zoë adores the shenanigans they get up to together, EXCEPT when it gets them into trouble, which does happen now and then! Getting into trouble is Zoë's idea of CATASTROPHE. Each time it happens, it means the friendship is on the rocks -- freeze-out time. Whenever this happens, it's really tough on Isabel, who desperately misses her best friend and doesn't feel like herself at all. Isabel decides that her problem must be that she has TOO MUCH LOVE and not enough people to give it to. Luckily, her mom and Rosa present her with a solution! They decide to adopt a dog. "Just like when Mom adopted me!" Isabel thinks. Now Isabel will have her very own baby to LOVE LOVE LOVE with all her heart. But she soon discovers taking care of a baby is not as easy as she thought ... And when things go wrong, that's when Zoë and Isabel's friendship really shines through.