The narrative follows a club of artillery enthusiasts who conceive and build an enormous cannon to propel a cylindrical projectile toward the Moon. It tracks their public campaign, technical calculations, debates over design and safety, fundraising and the selection of a coastal launch site, and the appearance of an adventurous volunteer whose plan reshapes the enterprise. Detailed engineering challenges and logistical obstacles lead to a dramatic firing and the projectile's departure into space. Alongside the outward plot, the work probes scientific optimism, competitive pride, and the tension between practical mechanics and imaginative daring.