Frederick and Ishbu live in Miss Dove s classroom, where they learn and eat to their hearts content. But one fateful evening Natasha arrives with disturbing news: her father, a famous professor and scientist, has gone missing For the second time in their lives, the rats embark on a worldwide journey. They travel the globe to save their friend and meet such colorful characters as a secret clan of badgers, two vicious rat terriers, and a stuffy English show mouse. It s another whirlwind adventure they ll never forget "