Carl turns to his friends to help him organise his plushie collection; Carl loses his bouncy ball collection.

Nico is tired of being mistaken for her twin sister; Carl is upset when Nico breaks the Lint Dinosaur Monday rules and makes a Lint Monster instead.

Carl surprises Sheldon with a lemonade stand, but is confused when Sheldon runs off; Carl's caterpillars turn into butterflies.

Lotta is determined to show Skyler that she is more than just "headphone girl"; the new kid in school causes a hullabaloo on the playground.

Carl gets a universal screwdriver for his birthday; a storm creates a hole in the walkway to Carl's house.

Carl doesn't know what to do when Nico falls; Carl learns a new word -- shindig.