World ex. Korea, ChinaBettina from next-door is afraid of everything and everybody. Especially of Black Dustbin, a big, dangerous dog. She observes him again and again, but dares not to get closer. One day Black Dustbin gets tangled up in a thorn bush. Bettina saves him and they become friends. The dog whizzes away and leaves his chain behind, a protective and strong chain that has experienced a lot. Bettina sloops the chain around her body. From that moment on she is the brave Betti Chain Mail. With Black Dustbin and Tek-tek, the partridge, she lives on Dr. Müller-Meckel’s hunting ground. There is nothing he hates more than disarrangement, so he tries everything to get rid of Betti. But even the worst dirty tricks cannot harm Betti.