Could the components of the eukaryotic cell division process have arisen through a gradual, unguided process? On this ID The Future, Dr. Jonathan McLatchie casts light on the unlikelihood of this proposition as he continues a four-episode series with host Andrew McDiarmid on the intelligent design and irreducible complexity of eukaryotic cell division. In this segment, McLatchie dives into some of the key molecular machinery responsible for the success of mitosis: the mitotic spindle and the motor proteins that aid in its assembly and function, explaining why their origin is beyond the reach of a Darwinian process.