It's a hot, hot day and Snail invites her new friend Slug into her home for some iced tea--who knew that a snail's shell is so roomy! When the two decide to have a picnic outside in the shade, a big mean ol' banana slug demands that they fork over their lettuce! But with a little bit of courage, friendship, and a dash of salt, the pair will find the strength they need to stand up to him.