When their neighbor, Mrs. Graham, charges Rosie and Fran with the responsibility of parrot sitting her pet, Peanut the Parrot, the girls and Benny think the job will be a walk in the park.

While Rosie and Fran immediately take to Peanut — going so far as to make him an honorary detective, Benny is unimpressed with the "dowdy gray" bird. Soon the charming and very vocal parrot makes his way into the girls' hearts and Benny is left out in the cold, wondering if he still fits in.

But when Peanut becomes the latest victim in a parrot-napping ring, Benny senses something is terribly wrong . . . and he and the girls set out to make it right. Determined to find Peanut before Mrs. Graham's return, Benny, Rosie, and Fran head out on a new adventure to bring Peanut the Parrot back home.