Detectives in major cities in the United States race against the clock in the wake of homicides, knowing that if they don't find a lead within the first 48 hours, their chances of solving a case are cut in half. The programme shows how detectives use forensic evidence and witness interviews to help identify suspects.
False leads hinder police after a married couple are killed. (S9 Ep9) Support at channel4.com/support. - Graphic images & details of real homicide scenes
Body parts are found floating in Miami's Biscayne Bay. (S9 Ep10) Support at channel4.com/support. - Strong lang/graphic images of real homicide scenes
A man is murdered over 10 pounds of marijuana. (S9 Ep1) Support at channel4.com/support. - Real homicide scenes/graphic images/may distress
Cut Down/9-1-1: A routine 911 call descends into chaos when shots ring out. (S9 Ep8) Support at channel4.com/support. - Graphic images & details of real homicide scenes
Smoke Screen/The Last Goodbye: Three people flee after a stabbing. (S9 Ep11) Support at channel4.com/support. - Graphic images and details of real homicide scenes
Alias/Duel: A detective learns a victim is his friend's brother. (S9 Ep13) Support at channel4.com/support. - Graphic images and details of real homicide scenes
Eye for an Eye/Dead End: A shooting has a surprising motive. (S9 Ep12) Support at channel4.com/support. - Graphic images and details of real homicide scenes
In Harm's Way/Jealous Rage: Is a murdered woman's friend telling the truth? (S10 Ep1) Support at channel4.com/support - Real homicide scenes
The Stranger/Prince of Darkness: Two are murdered in Cincinnati. (S10 Ep2) Support at channel4.com/support. - Graphic images/real homicide/may distress/drugs
Mixed Up/Blind Alley: Two brothers get caught up in a deadly drug deal. (S10 Ep3) Support at channel4.com/support. - Graphic images/real homicide/may distress/drugs
Division/Loose Ends: Two separate murders are shockingly connected. (S10 Ep4) Support at channel4.com/support. - Graphic images, real homicide scenes, may distress
A schoolyard fight leads to a double murder. (S10 Ep5) Support at channel4.com/support. - Graphic images, real homicide scenes, may distress
Girl Fight/Blink of an Eye: A mum is killed in front of her children. (S10 Ep6) Support at channel4.com/support. - V st lang/graphic images&descriptions/may distress
No Escape/Trail of Evidence: Months pass without a lead in Miami. (S10 Ep8) Support at channel4.com/support. - Strong language and distressing graphic images
Critical Condition/Love Thy Neighbor: A rookie races to catch a killer. (S10 Ep9) Support at channel4.com/support. - Strong language and graphic scenes of violence
A mum-of-four is shot outside a storage facility. (S10 Ep10) Support at channel4.com/support. - Strong language/distressing scenes/graphic images
The Good Son/Jacked Up: A teen is killed at his family's taco stand. (S10 Ep11) Support at channel4.com/support. - Strong language and distressing graphic images
Silent Rage/Tainted Love: Jealousy and obsession prove lethal in Harris County. Support at channel4.com/support. - Str lang/graphic images/real homicide/may distress