Complex sentence: While Superman flies out into space and attempts to stop the shrink ray reaching Earth, the others make their way to the Watchtower's control room in order to use the ship's mechanical arms to grapple onto Brainiac's spaceship and board it.
Split into simpler sentences: While Superman flies out into space and attempts to stop the shrink ray reaching Earth. The others make their way to the Watchtower's control room in order to use the ship's mechanical arms to grapple onto Brainiac's spaceship and board it.