Complex sentence: Skinner reveals M runs a factory where the kidnapped scientists are forced to make the superhuman formulas and weaponized versions of the Nautilus are being constructed, and in order that they do so, M has held the scientists' families as hostages.
Split into simpler sentences: Skinner reveals M runs a factory where the kidnapped scientists are forced to make the superhuman formulas and weaponized versions of the Nautilus are being constructed. In order that the scientists do so, M has held the scientists' families as hostages.