"Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon -- the mightiest force in the Nine Worlds. But this time the hammer isn't just lost, it has fallen into enemy hands. If Magnus Chase and his friends can't retrieve the hammer quickly, the mortal worlds will be defenseless against an onslaught of giants. Ragnarok will begin. The Nine Worlds will burn. Unfortunately, the only person who can broker a deal...

A bear almost gives up his search for his missing hat until he remembers something important.

Biscuit helps reunite a lost teddy bear with its owner.

After Trixie and daddy leave the laundromat, something very important turns up missing.

Collecting things dropped or left behind by others and writing stories about them as a tribute to the fiancée who died the day he lost one of her keepsakes, a man bequeaths his estate to his unsuspecting assistant, who bonds with new neighbors while attempting to reunite the objects with their owners. Andrew Peardew collects things dropped or left behind by others and writing stories about them. He does this as a tribute to the fiancée who died...

Jigsaw investigates when a scarecrow seems to be able to walk.

On a class trip to the birdhouse, Pinkalicious discovers that the parakeet has escaped and tries to bring the bird back home.

When Kate's little brother loses his hat, Kate, Lisa, Max, and Nick all try to think of a plan to help him find it.

At Christmastime, Lyle the crocodile helps Mr. Grumps search for his missing cat Loretta.

A little fish thinks he can get away with stealing a hat.