Friends gathered at their high school reunion where they learned about changes in each other's lives. The story then follows four characters - two mice named Sniff and Scurry and two little people named Hem and Haw. They discover their cheese supply is decreasing until there is none left. While Hem remains unsure of what to do, Haw overcomes his fears and searches for new cheese, finding it at station N. The story's message is that one must adapt to change by moving forward despite fears.