Reese Witherspoon is believable and very good as a woman who takes on a solo trek of the 1,100 or so miles of the U.S. Pacific Crest Trail as an emotional, physical and spiritual cleansing. (Based on the true life story as told in the book of the same name).  The flashbacks  — mostly brief — help provide some context but the sheer number of them can be a bit tiring.  The drama is really about what goes on in Reese’s soul.

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