In 2011, a 10-month-old baby girl goes missing from her home in Kansas City, Mo., and her family fears she's been kidnapped by a drifter, only to be accused by the police of being responsible for her disappearance.

In 1981, a woman and three teenagers are murdered in a cabin in the remote town of Keddie, Calif., and no one is ever brought to justice; now, new evidence may hold the key to finally cracking this case.