Nick and Kate go out for dinner, leaving a new babysitter in charge. At first it seems Mrs Travers just wants to spoil Eddie and Angela's Friday night fun - but it turns out she is a monster catcher! How will they stop her from seeing the monsters - especially when Haggis thinks he doesn't exist and actually wants to be seen?

When the monsters are left home alone while the family visit Kate's parents, they receive a surprise visit from a couple of burglars. The burglars certainly get more than they bargained for as the monsters defend the Carlson house in true monster style.

When Eddie tells the monsters about swapping teeny pets - free toys that come in cereal packets - Fiend becomes addicted, determined to build the biggest collection of teeny pets ever. Meanwhile, it gives Kate and Nick the idea to swap roles - leading to even more chaos in the household.

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!

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.

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.

The monsters are fed up with the family never having time for them, so they steal all the clocks in the house. In response, Nick installs a huge and terrifying grandfather clock - from now on, the house is going to run like clockwork! There's definitely no time for fun anymore.

When Kate wins a cookie competition, little does she know that some of Norman's fur went into the mix that won her the top prize. So when a film crew comes to film her making the famous cookies, Eddie and the monsters have to secretly get more fur into the dough.

When Eddie goes on a school trip, the monsters are lost without their leader. So Fiend appoints himself king of the monsters. But Haggis and Norman each think they should be in charge, so they decide to hold an election.

Norman turns into a human boy for just one hour and escapes from the basement - so Eddie and the others have to catch him before he barges in on Kate and Nick's dinner party upstairs. But worst of all, how do they stop Angela falling for this mysterious, gorgeous blue-eyed dream boy?

The Carlsons are all set to go on a dream holiday to Mexico - until Norman eats their passports at the last minute. But Eddie and the monsters persuade the family they don't need to go away to have fun, and they decide to have their holiday at home.

The monsters become obsessed with all things shiny - especially money, the shiniest thing there is. So to get as much of it as possible, they set up a business in the basement - but what starts out as a bit of fun starts to go sour when the monsters turn into hard-nosed businessmen.

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