Doctor Cold heart makes children angry and sad and the care bears have to fight him to restore happiness to children. This was the original series, but eventually Nelvana got the rights and continued this series with several changes. There was no Doctor Cold heart. When I was about 9, I was used to the Nelvana Series, I went with my brother to the video store and we rented a car bears VHS, turns out it was DIC Care bears, it was so tonally different I didn't know if I liked it. It feels so much darker than the Nelvana Series, these days it is very hard to find the old DIC episodes, if you are able to get your hands on the original 11 DIC episodes, do. They've never been released, but they were released to VHS years ago. Just so you can see how typically different the two series were. I hope someday there is a rerelease.