Nine-year-old Willis Wilbur is beyond excited to go back to school. Now that he has discovered his destiny as a life coach, he's looking forward to signing on more clients (preferably human ones, not just guinea pigs).

So when Willis and his classmates are tasked with creating a passion project -- an opportunity to present an idea they love and share it with the whole school -- Willis knows exactly what he's going to do. He enlists his very smart friend, Margo, and his number one best friend, Shelley, who is finally back from a family vacation in Hawaii. Together, they are going to make the Willis Wilbur App, also known as the first-EVER life-coaching app. Willis is confident he's going to become a millionaire. Soon, he can probably buy, like, a bunch of tacos.

Except Willis has one teensy problem. He doesn't know anything about technology. Or worse yet, coding. And then he discovers something even more horrific: Shelley wants to do her own passion project on horse therapy with her new, extremely weird, absolutely awful friend, Colt. In a tough spot with his life-coaching dreams and his best friend, Willis must learn hard but rewarding lessons about jealousy, realistic goal setting, and putting your pride aside to ask for help.