Emma's happy summer of soccer camp with best friend Luisa and visits to Rooney, the beloved old horse at the nearby stables where Annie the nanny helps out, changes when she discovers that Rooney is being sold and Luisa has some unhappy news.

Emma's really good horse plan --Marshmallow trouble -- McClain ruins everything -- Emma deserves a medal -- A riding lesson -- Happiness -- Horse in danger -- Emma causes a flood -- McClain ruins everything. Again. -- Absolutely. No. Horse. -- A new plan -- A thunderstorm -- Losing a best friend -- Marshmallow gets stuck -- Nighttime trip to the horse barn -- Where is Emma's horse? -- Injured! -- Emma's big, big decision -- Everything stinks -- Almost perfect.