When a curiously croaking stranger comes knocking at the door, Aunt Josephine launches into a rambling tale about her lifelong pursuit of a rare giant frog.

Eccentric Aunt Josephine poignantly ignores a stranger knocking at her door as she tells her niece Sadie the story of her time in the jungles of Peru, cataloguing amphibians for the scientific team of Admiral Rodriguez. When the admiral's son was suddenly swallowed by a giant frog, Aunt Josephine gave chase in a journey which took her around the world.