At night, mysterious sounds can be heard at Super-Charlie’s house. It seems like there is someone in the house – someone who doesn’t belong in the family… But no one else can hear these sounds, not even Grandma wants to believe Super-Charlie when he tells her about the supernatural intruder. Finally Super-Charlie realizes that the only way to prove that he is right is to set a trap and catch the ghost himself. But in order to do that he needs all of his superpowers.