WAS THE WIFE LEFT ALONE?
Am I correct in thinking that the wife of the engineer was left alone in the end of the movie?
shareNo. The obvious implication is that Markham--Powers Boothe--was leaving Tommy in the forest with the tribe and going home to Jean, his wife, and Heather, his daughter.
It is why he was so concerned about his son and coming grandchildren, that he planned to blow up the dam. But since the flood took the dam out, he didn't have to actually destroy anything.