Complex sentence: Many years later, in "Autumn" (or "Fall"), the aging master returns from a supply run to the local village, and by chance glimpses a warrant for the arrest of his former apprentice, wanted for the murder of his wife.
Split into simpler sentences: Many years later, during the Fall, the aging master returns from a supply run to the local village. By chance he glimpses a warrant for the arrest of his former apprentice, wanted for the murder of his wife.