The Lighthouse by the Sea

Also known as Der Leuchtturm an der See, Rin-Tin-Tin's letzte Heldentat, O Farol da Ponta do Mar, Rin-Tin-Tins Heldentat, Fyrmesterens Datter

A lighthouse keeper and his daughter are in trouble on two fronts--if the authorities find out he is going blind they will remove him, and a gang of liquor-smugglers is trying to destroy the lighthouse so they can land their illegal cargo on shore without being spotted.