White Mice (1926)

Roddy Forrester, a charter member of the White Mice Club (dedicated to aiding people in distress), is sent by his father to a Latin American republic, where he falls in love with Inez Rojas, the daughter of General Rojas, a former and greatly beloved president of the republic. When Roddy learns that Inez's father is slowly dying in a prison cell, he vows to get him out. Roddy keeps his word: He frees Rojas, winning Inez's love as the result.