The video shows us how to sew a straight stitch which is really simple. The needle which is already being threaded and knotted on the other side is made to weave in and out in a straight line. It is done as straight as possible and though the video doesn't show it being done perfectly but its just a demonstration on how the straight stitch works. It is just made to weave in and out along a straight line and is made to end up with the needle on the back side and make a knot. This way you get to sew a straight stitch.