Eddie pretends to be ill to avoid a maths test, promising the monsters they'll have a great day hanging out together. But the monsters think they really have caught something from Nick, who is genuinely ill. So they make their own 'medicine', which they test on Human Dad thingy first.

It's Eddie's birthday and he can't wait for a party with his three best friends in the all the world - Haggis, Fiend and Norman. But when the monsters argue over what present to give Eddie, it turns into a full-scale row that threatens all the party plans, and even their friendship with Eddie.

When the monsters are impressed by a few of Dad's old magic tricks, Fiend decides to become a master magician. Of course, he is useless, and manages to chain Angela and Norman together - just as Angela has a date coming over to watch a DVD!