The ghost of Sergeant Roberts helps his commanding officer change the attack plans to defeat the enemy, then the ghost takes his revenge on the man who killed him.; Troy, a lighthouse operator, sees a ship in the distance. Even though his companion tells him to forget it, Troy investigates and finds himself trapped on the Flying Dutchman.; Timmy's grandfather's ghost gives him a giant beetle. Timmy's father is not happy until the beetle saves them from a robber.; Dr. Graves convinces the ghost of Bob Bibb to stop driving his son to become the best athlete in the world.