Treasure of Silver Lake

Old Shatterhand (Lex Barker) is a frontiersman who finds Fred Engel's father murdered by Colonel Brinkley (Herbert Lom), who took only half of a treasure map. Shatterhand and the Apache warrior Winnetou (Pierre Brice) side with Fred (Götz George) and ride after the killer. Harald Reinl built the first of the Karl May films on that pairing, and the bond between the frontiersman and the Apache is the thing that holds it together.