Theo Gordimer is a classic 13-year-old couch potato: he prefers video games and TV shows to playing sports. Then his favorite aunt is diagnosed with cancer. Theo wants to do something to help her, but what? Then his friend Paul tells him about a 5K road race coming up. The money collected from the race goes toward cancer research. Theo panics: running the race seems like the perfect way to help out his aunt, but 5K is more than three miles! Theo can barely run a quarter of one mile without having to stop. How will he be able to finish the race?