From NetFlix:

Set in the 1820s American frontier, this snowy thriller follows fur trapper Hugh Glass as he relentlessly seeks retribution against the companions who left him for dead in the Missouri River’s icy waters after he was mauled by a bear.

Talk about bloody, violent, gruesome, and sometimes just plain disgusting! Are you in the mood to watch Leonardo DiCaprio as Hugh Glass survive in a blizzard by hollowing out a dead horse and crawling naked inside to keep warm?

So, why would you watch this two and one-half hour slog through the frontier?  Answer: the story, the action, the ugly realism of frontier life, and the gorgeous photography are worth the trip. Depiction of the native Americans is marvelous. There is not a single handsome or beautiful movie star to be seen, although to be fair, the actors were so superbly made up for their roles as weather beaten survivors that I could only recognize DiCaprio. See if you can spot Tom Hardy without knowing beforehand which role he plays.

Besides, I am always drawn to good guys getting revenge on bad guys.

Michael Punke wrote the original novel.

You have been sufficiently warned about this masterful piece of acting by Leonard DiCaprio who immersed himself to an awe-inspiring degree in his difficult role as a man who just would not give up.