Challenge to White Fang

Il ritorno di Zanna Bianca internationally released as Challenge to White Fang or The Return of White Fang is a 1974 Italian adventure film directed by Lucio Fulci. It is the only official sequel to Zanna Bianca.

Meanwhile, Beauty Smith is alive and well, and again exploiting the people of the very town where John and Bill live. Smith lives under the alias Charles Forth, a local businessman, and fakes a crippling injury by confining himself to a wheelchair with his two henchman always at his side. Sister Evangelina Virna Lisi is now running a new mission hut in the town to convert into a hospital. She decides to ask Mr. Forth for funding to operate her hospital despite warnings from the townsmen that Mr. Forth is a businessman and wont give her any money unless she gives him assurances that she will repay the loan, with interest, within 60 days or less. Sister Evangelina neverless goes to meet with him, and she recognizes the villainous man immediately.Sister Evangelina contacts novelist Jason Scott Franco Nero whos on a book tour down south and agrees to come to her assistance. Scott also meets with his old friend Kurt Johnson Raimund Harmstorf, now working as a local mines inspector to help out. Together, the three of them take their accusations to the towns police chief, Inspector Leclerq Renato de Carmine, who is actually on the payroll of Beauty Smith and he claims to have known the crippled Mr. Forth for six years. Leclerqs wife Jane Hannelore Elsner, is pressuring her husband to accommodate Smiths nefarious plans in return for more bribe money he gives them in exchange for protection since Smith is now a wanted fugitive. ........

Source: Wikipedia