Captain of the Pilgrim (1987)

Junga Dick Sands takes the place of the dead captain and brings the Pilgrim ship to Africa, and not to America, as the vile villain and slave trader Negoro put an ax under the compass. So the fifteen-year-old captain, the wife of the shipowner with his young son, the professor and the crew were captured by the villains who profit from living goods.

Unfortunately the movie Captain of the Pilgrim is not yet available on HBO Max.