Gail and Tom Hartman are struggling to stay together and decide to take a white-water rafting holiday adventure in Montana for their son Roarke's 10th birthday, only to meet up with a pair of mysterious men whose desperation grows, turning their vacation into a nightmare.

Meryl Streep
as Gail Hartman

David Strathairn
as Tom Hartman

Kevin Bacon
as Wade

John C. Reilly
as Terry

Joseph Mazzello
as Roarke Hartman

Benjamin Bratt
as Ranger Johnny

William Lucking
as Frank

Stephanie Sawyer
as Willa

Elizabeth Hoffman
as Gail's Mother

Victor Galloway
as Gail's Father