1. The surprise visitors

Tommy Twitchnose and his family receive an unwelcome surprise when some unexpected visitors arrrive, led by the daring Danny Dockmouse (Tommy’s long-forgotten cousin), who has led his large family all the way from London to seek a better life in the country.

2. A happy Harvest Festival

Tommy and his family join the church mice, who live nearby, to celebrate the Harvest Festival. The joyful service is conducted by a mouse by the name of the Reverend Albert Pew, who leads them in singing some funny animal versions of well-known harvest songs, and tells them about his new plan to make sure the church mice (who are very poor) will have enough food to last them another year.

3. Fun and games at a party

All the mice are invited to the annual garden party held in the grounds of the stately home of Lord Whiskers of Whiskerton. They travel there on the Moles' Underground Express and when they arrive are amazed by a series of daring circus acts performed by a group of acrobatic frogs, two squirrels and the brave contestants in the annual Grand International Vole Swimming Race.

4. A visit to the Houses of Parliament

Lord Whiskers is an honourable member of the House of Mice, which has its premises under the Houses of Parliament in Westminster. He invites his new friends Tommy and Danny to join him on one of his visits, but trouble follows when Danny decides to explore the House upstairs and ends up trapped in a Big Red Box used by the Prime Minister.

5. The Small Animal Rescue Service

The Reverend Albert Pew asks Tommy to take charge of a new venture called the Small Animal Rescue Service, which is designed to transport sick animals quickly to the Small Animal Hospital. It is the day of the parish picnic at the seaside, and Tommy flies there on the back of a friendly seagull; but before they get there they notice an animal in distress on the rocks below, and swoop down to the rescue.

6. The very naughty squirrel

Tommy's wife, Tiggy, helps to run the new village shop, but is alarmed when she discovers that someone is helping themselves to things without paying. PC Charles Catchem takes charge of the operation to find out who's behind crime, and with the help of Barney the Barn Owl he devises a clever trap to catch the thief red-handed.