After their 15 puppies are stolen Perdita immediately goes off on a dangerous journey to rescue the puppies alongside Pongo. The winter conditions make the journey tough, but they eventually meet with a sheepdog called the Colonel, who takes them to the puppies. Upon seeing the other puppies alongside their own fifteen, they decide to take them all to London, knowing that Roger and Anita would never turn them out.

Perdita reappears in the film's official sequel where she is once again devastated to hear one of her puppies is missing once again. She tries to get Pongo to stop blaming himself for Patch being missing and tells him the important thing is that they find him before Cruella does. When she finds Patch she's revealed he's safe and tells him how worried they were about him.