| On the Case with Paula Zahn | In California, the terrifying abduction of a young girl sends a relentless detective on a quest to bring justice to her heartbroken family. S13/Ep4 | Fri, May 2, 1:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | Painful questions torment an Ohio husband after his wife's brutal murder - in particular the community's doubts about whether he had been her killer. S13/Ep1 | Thu, May 1, 1:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | Will a trail of blood from the balcony of a young woman's apartment to the complex's parking lot lead police to her cold and calculating killer? S13/Ep5 | Mon, Apr 28, 10:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | Police uncover a trail of evidence that indicates that a missing young woman has been the victim of foul play. Can they find her before it's too late? S13/Ep16 | Mon, Apr 28, 9:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | The horrifying truth behind the murder of a beloved reality star. What really happened to the "Welcome to Sweetie Pies" cast member? S13/Ep19 | Mon, Apr 21, 10:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | Police use a revolutionary new technique to find the person responsible for a savage murder at the Paradise Ranch. S13/Ep20 | Mon, Apr 21, 9:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | A young mother vanishes leaving behind puzzling clues and disturbing questions. Will a needle in the mud reveal the truth behind her disappearance? S12/Ep15 | Thu, Apr 17, 1:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | A murdered teenager's body mysteriously turns up in the rural Iowa countryside. Will the smallest clue be the key to bringing her killer to justice? S12/Ep13 | Wed, Apr 16, 1:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | A college coed disappears, and her family launches a desperate investigation to find her. What they discover will change their lives forever. S12/Ep12 | Tue, Apr 15, 1:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | Police discover that the successful wife of a popular DJ has been murdered. Will video cameras in the neighbourhood help bring her killer to justice? S13/Ep14 | Mon, Apr 14, 10:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | Police must solve the murder of a young woman killed while celebrating her graduation from U.S. Naval training. S13/Ep13 | Mon, Apr 14, 9:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | Painful questions torment an Ohio husband after his wife's brutal murder - in particular the community's doubts about whether he had been her killer. S13/Ep1 | Mon, Mar 3, 10:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | In 1998, an unidentified woman is found bound, frozen and shot to death in the mountains of Utah. Police race to find her killer. S13/Ep7 | Mon, Mar 3, 9:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | A young girl is brutally murdered whilst walking to school. Police race to find and catch the killer before he can destroy another loving family. S12/Ep17 | Mon, Dec 9, 11:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | Investigators deal with puzzling clues and odd witness accounts when trying to solve a 1987 murder. Will lost evidence be the key to identifying the killer? S12/Ep16 | Mon, Dec 9, 10:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | A young mother vanishes leaving behind nothing but puzzling clues and disturbing questions. Will a needle in the mud reveal the truth behind her disappearance? S12/Ep15 | Mon, Dec 2, 11:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | As police attempt to solve a disturbing homicide, each step of the investigation reveals another layer in a spiderweb of tragedy. S12/Ep14 | Mon, Dec 2, 10:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | A murdered teenager's body mysteriously turns up in the rural Iowa countryside. Will the smallest clue be the key to bringing her killer to justice? S12/Ep13 | Mon, Nov 25, 11:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | A college coed disappears, and her family launches a desperate investigation to find her. What they discover will change their lives forever. S12/Ep12 | Mon, Nov 25, 10:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | The search for the man who murdered a single mother might lead police to the perpetrator of a second brutal crime with chilling similarities. S12/Ep11 | Mon, Nov 18, 11:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | The baffling murder of a beautiful young woman leads police to zero in on two potential suspects - her new boyfriend and an obsessed stalker. S12/Ep10 | Mon, Nov 18, 10:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | An unidentified woman is found murdered in an off-campus apartment. Police have no leads on the case until her terrified neighbour shares a chilling story. S12/Ep9 | Mon, Nov 11, 11:00 pm | Quest Red | 60 mins |
| On the Case with Paula Zahn | A romantic date at a high school Valentine's dance turns into a night of terror when a beautiful teenager is abducted from her boyfriend's arms at gunpoint. S12/Ep8 | Mon, Nov 11, 10:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | A murdered teenager's body mysteriously turns up in the rural Iowa countryside. Will the smallest clue be the key to bringing her killer to justice? S12/Ep13 | Mon, Jul 15, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | A college coed disappears, and her family launches a desperate investigation to find her. What they discover will change their lives forever. S12/Ep12 | Mon, Jul 8, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | The search for the man who murdered a single mother might lead police to the perpetrator of a second brutal crime with chilling similarities. S12/Ep11 | Mon, Jul 1, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | The baffling murder of a beautiful young woman leads police to zero in on two potential suspects - her new boyfriend and an obsessed stalker. S12/Ep10 | Mon, Jun 24, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | An unidentified woman is found murdered in an off-campus apartment. Police have no leads on the case until her terrified neighbour shares a chilling story. S12/Ep9 | Mon, Jun 17, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | A romantic date at a high school Valentine's dance turns into a night of terror when a beautiful teenager is abducted from her boyfriend's arms at gunpoint. S12/Ep8 | Thu, Mar 21, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | Police find a giant sword bent in half and a victim who has been savagely murdered. Investigators sort through his complicated life to find his killer. S12/Ep6 | Thu, Mar 7, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | Police wonder if a young woman's personalised license plate, FLRT 12, makes her the target for murder or if a far more sinister plot is behind the crime. S12/Ep5 | Thu, Feb 29, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | Police investigate the gruesome murder of a mother and child. They quickly realise all the evidence indicates the killer was someone the victims knew and trusted. S12/Ep3 | Thu, Feb 15, 11:00 pm | Quest Red | 60 mins |
| New: On the Case with Paula Zahn | When the body of a young woman is discovered in the woods, investigators are faced with a difficult decision if they're to solve this hauntingly familiar murder. S12/Ep1 | Thu, Feb 8, 11:00 pm | Quest Red | 60 mins |