Lisa has to go to hospital because she is due to have an examination on the cardiology ward at the children's hospital in Erlangen. Of course she is scared. But fortunately, everything is not so bad. Her mother can come with her and so she is never alone. From the ECG and ultrasound to the X-ray, she is always told exactly which examinations are coming next. The doctors, nurses and carers take good care of Lisa and make time for her. She is allowed to play with her new friend Vera and rides on her bed through the entire children's hospital to the operating theater. There is also a fun surprise waiting for her at the end!