The cute and cuddly pet of 10-year-old Laura, Hamtaro is a small hamster with a big sense of adventure! Join Hamtaro and the adorable rodent rascals who captured the hearts of millions of children the world over.
After Laura's parents have an argument, Dad leaves the house with Laura. As a worried Hamtaro watches them go, the Ham-poet Jingle appears. In the meantime, Laura and her dad go to the department store and buy her mom a pretty pendant for Laura’s parent’s anniversary, but when they get home, Laura discovers the pendant is missing.
Laura’s social studies class takes a field trip to the harbor to ride a sightseeing boat. Boss claims to be an expert on boats and harbors, so the hamsters follow along. When they get there, however, they soon realize that Boss has never been near a boat or a harbor in his whole hamster life.
The hamster siblings, Stan and Sandy have one of their heated arguments, and Sandy’s ribbon is torn and Stan’s maracas are broken. The Ham-Hams decide that the twins need to make up, so they plan a surprise party for their birthday.
Snoozer sleeps so peacefully that no Ham would know how busy his dreams are. In one dream, the Ham-Hams are in a castle town and Robin Ham (played by Hamtaro) is going to Chick-ah Chick-ah Castle to visit the sick father of Maid Laurien.
Laura's town is having a story-writing contest, and Laura writes a great story about star-crossed romance, of love separated by the Milky Way in the sky. Impressed, the Ham-Hams decide to do some story telling of their own.
A young pop star named Glitter has just enrolled in Laura's school. What's more, Glitter and her accompanying pop-star hamster, Sparkle, are scheduled to perform a live concert in town! The Ham-Hams invite Sparkle to come hang out with them at the clubhouse. But despite all the Ham-Ham's efforts to befriend Sparkle, she's a tough nut to crack. Meanwhile, the glamorous Glitter has her eyes on Travis, and Laura is sad and jealous. Will Glitter and Sparkle find a way to fit in?
