Bella, an orphan girl, is rescued from a catastrophic shipwreck on the coast of Australia by Black Beauty, though the accident costs Bella her memory. Both Bella and the horse are adopted by a country doctor, but Bella finds herself haunted by dreams (or memories?) of a missing gold shipment.
In 1990, Isambard Productions in the UK made a series called The New Adventures of Back Beauty, which picked up on the earlier 1970s series The Adventures of Black Beauty, including re-using some of the characters.
That series is unrelated to this series.