After seeing a performance by Marten the Magnificent, Franklin decides that he wants to be a magician, too, and charges his friends to see a show in which he promises to become invisible--even though that is a trick he does not know.
In the heat of excitement, Franklin invites all his friends to his birthday party at Tamarack Play Park, but he soon learns from his parents that they can only afford to pay for two of his friends, not all of them, and Franklin wonders what to do.
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.