Look at the unsolved murder of Hogan's Heroes star Bob Crane, meet a criminalist who uses fingerprint matching and see how police solve the murder of a missing Navajo girl 20 years later.

From Wisconsin to Maine, go inside cold case units and watch as police use computer enhanced photographs, ground penetrating radar, forensic science and tough police interrogation to crack some of the oldest crimes in the books.

In England, Juliet Rowe, a quiet community member and wife of a local grocery man, was gunned down in her kitchen. Ten years later her killer is arrested.

Police solve the killing of an 11-year-old track star 10 years later when they obtain the DNA evidence they need in a cigarette butt dropped by the suspect. Also, a mother is convicted of killing her 5-year-old daughter 13 years after the crime.

DNA tests identify a skull of a 14-year-old boy who went missing 6 years earlier. When a second skull is found, investigators fear they have a serial killer in the area. In Florida, detectives trace a gun used in a 4-year-old murder.

In Missouri, a part-time missionary is convicted, 38 years later, of killing her 5-year-old stepdaughter, and the skeleton of a Michigan boy, dead for 10 years, leads police to a serial killer.

Alligators feasting on a human corpse help police to crack a murder investigation. Phoenix police discover that a preacher is the culprit in a 20-year-old murder.

A man in Florida is reported missing and his roommate is the main suspect. Then, at first it looks like L.A.P.D. Sgt. George Arthur died in a car crash. But two days later, four bullets are found in his skull.

A highly-regarded California arson investigator is suspected of setting a series of fires, and a man is convicted of raping and murdering his 68-year-old neighbor and stealing her Coke bottle and rare coin collections.

In Palm Beach, a determined cop solves the murder of prostitute Lucy Pate five years later. In 1989, Susan Doll was found beaten, raped, and strangled. Investigators extracted DNA from a semen stain, but had no suspect to match it against - until 1995.

A woman tracks down the man who raped her 7 years earlier, only to find out that the statute of limitations on rape is 6 years; and a detective keeps a murder investigation going for 16 years to proves a woman killed her husband in a satanic rite.