One scorching summer day, Eva comes up with a great idea: a lemonade stand! But when she sees that Jake across the street has his own stand, and he's giving away free cookies, Eva knows she needs another idea to keep people lining up. Eureka-new flavors!

Except Jake has ideas too-bigger and better ones, and more customers! Soon Eva is out of ideas, and, she thinks, out of business. But sometimes the best ideas are where you least expect to find them. Instead of giving up, Eva discovers something different (and cool!) that lets her succeed in a whole new way.