Allison Flynn loves her son Danny and her job as a nurse in the small town of Bitter, North Dakota. But when Danny is kidnapped, Allison races against time to find him.
With the help of the police and government, she follows leads and uncovers a web of lies involving her son's biological mother, a drug addict named Caroline Saunders. Caroline, now using a false identity, had been plotting to take Danny back, killing anyone who got in her way. Allison's desperate search leads to a final showdown at a waterfall, where she fights to protect her son and end the nightmare.