This article presents the Snail problem, a relatively simple challenge about motion that offers engaging extensions involving the notion of infinity. It encourages students in grades 5-9 to connect mathematics learning to logic, history, and philosophy through analyzing the problem, making sense of quantitative relationships, and modeling with mathematics (NGAC 2010). It also gives students of all ages a glimpse into the development of mathematics by introducing a reason to think about infinite convergent series. (A bibliography is included.)