Into the Mystery Superboy : Season 4 Episode 10

While trying to save the life of a man whose car just crashed, Superboy encounters an unusual ghostly woman. After the encounter, Clark begins to reminisce about his aunt Cassandra and everything that she taught him as a kid but his reminiscing is cut short as he has to save the life of a young boy, and once again he encounters the ghostly woman. After a third encounter at a fire in a nursing home, Superboy begins to search for Cassandra and locates her in a cabin outside the city.