Richard Adams

Two dogs escape from a laboratory and are hunted as possible carriers of the bubonic plague. (imdb)

A group of rabbits flee their doomed warren and face many dangers to find and protect their new home. (imdb)

A London art broker goes to Copenhagen where he requires the services of a secretary fluent in Danish, English, and German. He falls deeply in love with the woman, despite the fact that he knows virtually nothing about her. She insists on not being married in a church, and after they are married, some bad things from her past begin surfacing in subtly supernatural ways, and he must find the best way to deal with them without destroying their relationship. (imdb)

Fleeing their doomed warren, a colony of rabbits struggle to find and defend a new home.