Rat brothers Louie and Ralphie Ratso try to prove they can be as rough and tough as their father in the Big City, but every time they try to show how tough they are, they end up accidentally doing good deeds instead.

Although Rat and Roach sometimes fight and call each other names, such as "Crabby Head" and "Tuna Breath," they remain best friends.

Geronimo Stilton finds himself in the wild West, where he becomes involved in a showdown with the "wickedest" rat of Cactus City.

"Around the globe, exceptional mice live in the shadows. Under the direction of famed mouse inventor Gadget Hackwrench, they work together as a team to solve big problems using small gadgets. They are highly trained. They are nearly invisible. And they love cheese".--

A brave pet shop mouse named Hopper attempts to rebuild a fallen empire in the underground rat civilization of Atlantia, located in the subway tunnels of Brooklyn, while Queen Felina and her band of street cats declare open season on the rodents.

"It is Princess Harriet Hamsterbone to the rescue when Heady the hydra's egg is stolen, but her search leads her to a castle accessible only by a rat with a very long tail"--

Little Rat overcomes her fear and learns to ride a horse, just like her daddy did when he was young.

When they find a rabbit flattened in the road, a dog and a rat decide to give the deceased animal a proper sendoff.

An excited Bear mistakenly believes that Rat has given him a boat for his birthday.

When Super Turbo gets caught in a mousetrap in the school cafeteria, he must ally with his archnemesis Whiskerface to help him escape.