A Romany Lass

Lonely young Lord Billy, who misses his dear departed mother, has nothing to do but lounge about the castle all day while his father, the Earl, attends to important affairs of state – until the noble lad joins the Army Cadets. Rising through the ranks to become the Lance Corporal of his squad, patrolling undefended points along the English coast, he's soon on the trail of German marauders.

An intensely unhappy woman hatches a plot to switch the babies of a poor family and a rich family. But the nurse hired to pull off this transfer refuses to go through with it, leaving each baby with its proper family. When the babies are grown, the man from the poor family (who has been led to believe that he did come from the rich family) goes to the house of the other and throws him out. The remainder of the film deals with the frustrations of mistaken identity.