The Los Angeles FBI office receives a call from a man who claims his son has been kidnapped with just one week to live unless his family pays a $230,000 ransom. Agents follow the money trail overseas and uncover an international kidnapping ring.

Salt Lake City is rocked by a series of package bombings leaving two people dead. The 3rd victim, Mark Hofmann, a rare documents dealer, survives the bombing. But the story he tells investigators, doesn't jive with what explosives experts know.

On March 21st 2004, Brian Hummert reports his wife Charlene missing, but within hours police find her dead body in her abandoned vehicle. Soon a serial killer letter admits responsibility for her murder, but the evidence suggests otherwise.

A women is attacked and murdered in her home, but when the crime scene yields no physical evidence and no likely suspects, investigators have a complete whodunit on their hands.

In May 2004, three matching suitcases containing male body parts surface off the coast of Virginia Beach. Investigators gather circumstantial against the victim's wife, but now they must prove she is capable of the gruesome murder of her husband.

A women is found murdered in her home. Police suspect the husband because there is no sign of forced entry. Six months into their investigation, detectives get a surprise tip that blows the case wide open.

An 18-year-old woman has suddenly disappeared. Three weeks later, her remains are found in a make-shift grave. During their investigation, detectives find Kelly's online journal, which reveals a teenage love triangle full of conflict.

In Texas, a young mother disappears, leaving her infant daughter alone in the house. Days later her body is found burned in a remote part of town. Suspicion falls on the husband, but there may be another killer in their midst.

The parents of a 29-year-old women alert police when she goes missing. Investigators focus their attention on the victim's estranged husband, but friends say there was another man in her life.

Tim Permenter finds his girlfriend, Karen Pannell's lifeless body lying in a pool of blood. Police see a clue on a wall near her body written in blood, the word "Roc". But did Karen write the words herself?

29-year-old Summer Baldwin is found dead inside of a suitcase. Surveillance shows a man buying the exact same suitcase Summer would later be found dead in. As detectives build their case, they learn Summer might not be his only victim.

A millionaire, his wife, and their daughter are all found shot to death in their California home. With a long list of potential suspects, investigators spend three years analyzing every piece of the puzzle and make an arrest that shocks everyone.

The body of Jennifer Myers is found in her art and frame shop. Investigators determine the 44-year-old mother of two died of multiple gun shot wounds. With little evidence, detectives soon uncover an alarming link between Jennifer and her killer.

Dana Satterfield is found strangled to death in the back room of her beauty salon. A solid alibi clears Dana's husband of any suspicion. As other leads are exhausted, the case turns cold -- until an individual comes forward with a dark secret.

A four-year-old boy runs to his church and tell volunteers his grandparents are "melting." Police find the boy's great-grandparents dead from shotgun blasts. Detectives spend several days reviewing suspects until a tip breaks the case wide open.

One morning, a church employee arrives to work and trips on a woman's body. The pastor of the church suspects it could have been a random killing. Further questioning leads detectives to suspect another member of the church.