Twins Harley and Rhiannon Hummingbird have always been competitive. But there's one thing the siblings can agree on—they can't wait to travel from their Oklahoma home to their grandparents' new cabin in northern Wisconsin. Both Harley and Rhiannon are looking forward to a week of swimming, boating, and most importantly, fishing. While there, they learn about the best baits, the best techniques, and the importance of location in having a successful day fishing. But the most important lessons they learn are about teamwork and persistence.