Simplify the following text for a Grade 8 native English-speaking person.
Original: True Heart Bear and Noble Heart Horse lead the other Care Bears and Care Bear Cousins , as they come to the aid of Christy , a young camper who is tempted by an evil shape-shifting figure named Dark Heart .
Simplified: In this second movie , the Great Wishing Star helps True Heart Bear and Noble Heart Horse start the Care Bear Family , as they try to save them and the Kingdom from a demon villain named Dark Heart . A camper named Christy makes a deal with the villain that makes her a success at anything she never did before , even cartwheels .