chunk: With his mother dead, PK finds himself living with his grandfather in Barberton. He eventually seeks a mentor in Karl "Doc" von Vollensteen (Armin Mueller-Stahl), a lonely German musician who lost his family in Europe. Doc warms to PK and under his guidance the latter soon becomes an excellent pianist. He is interned as an enemy alien at the onset of World War II, but PK continues to visit him regularly in prison. Doc introduces the boy to Geel Piet, a Cape Coloured inmate who takes von Vollensteen's place as PK's mentor, training him to be an excellent boxer. Piet also impresses on PK his mantra: "first with the head, then with the heart", a phrase that will see the young man through even greater hard times ahead.