The Ghost Inside My Child - Season 2 Episode 12 -

As a young girl, Kimberly constantly played with her sister Sarah whom no one else could see. Her mother really became concerned when Kimberly said that her sister pushed her into a fire, killing her. Evan made bomb noises from the time he could speak and described intense nightmares of war, but when he began to write Russian and recall precise memories of being a Russian sniper, the family began to wonder if he was remembering a past life.