A bug singing happily in a bog and the hungry frog that is watching are covered by a thick fog, with surprising results.

Crabby, far from being a happy crab, is quite crabby, so when pushy Plankton, who is always trying to cheer up fellow marine creatures, bakes Crabby a cake, even this might not be enough to make him smile.

After finding a box just the right size to hide in, a little fox tries to play some tricks on his big friend, Pig, but things do not work out exactly as he planned.

Crabby is not a happy crab, in fact Crabby is quite crabby, so pushy Plankton, who is always trying to cheer up fellow marine creatures, bakes Crabby a cake--but will Crabby finally smile?

Plankton gets the idea to play school with Crabby as the student, but Crabby is more interested in recess and uses wordplay to confuse Plankton and get his way.

Barnacle is bored by the monotony of the tides, and envies the fish who swim freely--until a hungry eel comes along.

Crabby is expecting just another boring day in the ocean, but Plankton decides to throw a best friends party--and even Crabby's long list of things he wants at the party will not deter him.

After being told no drama and to put on his pajamas, the dinosaur is unimpressed and romps around the house undressed since human clothes are much too small for such a mighty dinosaur.