 In this episode there is a similar scene like in the TV movie  _Tierärztin Dr. Mertens (2002) (TV)_ (qv): Jonas Mertens  (Ludwig Zimmeck (qv)) and Rebecca Lentz (this episode:  Elisabeth Böhm (qv), TV movie: Fabienne Haller (qv)) are  sneaking through the personnel entrance of the zoo without the  permission of their parents. And then the other zoo visitors notice  astonished that there are two children in a dangerous lion area.  Then their parents rescue the kids.