The Test (1935)
Plot: The film is a Western adventure that features the famous dog star, Rin Tin Tin, Jr., as the hero. Fur trapper Brule Conway sets his trusty dog, Rin Tin Tin, Jr. (called Rinnie), to guard his valuable stash of furs. However, the henchmen of a rival trapper, Pepite La Joie, use a female dog to lure Rinty away from his post and proceed to steal the pelts. Rinty must then track down the thieves and fight to recover his master's stolen furs.