Tom Fuller a scrupulously honest fellow of extraordinary physical strength is generally regarded as a half-wit. He has been fired from every job he has ever had. When he is hired on as a blacksmith's assistant by Boston Charlie it is a job that he can do and his spirit soars. However when Oliver Champion stops at the smithy and recognizes Tom Fuller as the son of a renowned gunfighter Boston Charlie is outraged and fires Tom. Champion asks Tom to join him proposing that Tom who in addition to his physical strength is also an excellent shot should become his bodyguard. Not having any alternative Tom accepts Champion's offer. It is a decision made in haste and Tom soon learns that Champion is new to the West that he is an escaped convict from a prison in the East and that he has come as far as he has because he is in pursuit of a master criminal Henry Plank. "