The video ends with the calf being thrown into a pen, surrounded by other calves who've been taken away from their own mothers. As the other babies cry out, he collapses into the straw, afraid and alone.
Sadly, these separations are an inevitability of the dairy industry. Calves are often taken away from their mothers within hours of birth, never to be seen again. Even at more "humane" facilities, where calves are allowed to nurse for a short period, male calves are shipped off to be killed for veal. Female calves will enter the same circle of birth and loss their mothers did.
And as the video below shows, the maternal bond of cows is especially strong. Mother cows will sometimes cry out for days after their babies have been taken, and in lucky cases have even managed to hide their calves from their farmer.
You can watch the full video below.