When his friend Otter comes to visit, Franklin finds it hard to accept the fact that they have both grown up and may have to discard their childish ways.
Franklin decides to hold a surprise going-away party for Skunk after seeing a "sold" sign on his friend's house, but he ends up being surprised himself.
Franklin and his friends look everywhere for the book Dynaroo and the monster, but they cannot find it until Franklin's grandmother gives him a copy as a present.