Ellen Degeneres voices the short-term memory-addled Dory as an adult blue tang, continuing her friendship with clownfishes Marlin and his son Nemo in the reefs near Australia. Dory is struggling to remember her parents that she was separated from at an early age, though she sometimes remembers fragments of those early days, with enough clues to set out on her own to try to find them in, "the jewel of Morro Bay, California." With worrywart Marlin and excitable Nemo in tow, Dory sets off on her quest for a (hopefully) happy reunion across the Pacific, where a marine-life rehabilitation facility may hold the key to the mystery of the parental whereabouts, if only the new creatures she meets can help her remember the clues along the way.