The FBI races to save 11 year old Leah from a sexual sadist who kidnaps and tortures young girls on Interstate 10. But will they manage to locate her in time? S4/Ep1
Bank manager Michele is taken hostage and forced to rob her bank to save her daughter. When the gang is caught they claim Michele was an accomplice; are they lying? S3/Ep13
A young pregnant woman is found dead in her home and her unborn baby has been torn from her womb. Who killed Bobbi Jo, and is her stolen child still alive? S3/Ep12
Loving mum Joanne never returns from a date with a handsome stranger. Cops identify him as an ex-state trooper - with a taste for blood - is she still alive? S3/Ep11
On Christmas Eve, a young mother allows an older woman to hold her baby, but then the woman vanishes. Who is she, and why has she stolen her child? S3/Ep10
When a student is found dead at the university, cops quickly arrest an obvious suspect. But another murder proves they've got the wrong man; who is the campus killer? S3/Ep9
A serial killer is raping, killing, and burning women in Chicago. But how long will it take the authorities to connect the murders and stop the slaughter? S3/Ep8
Christine Aragao and her two young children are abducted in Miami days before Christmas. Can the FBI work out who has kidnapped them and why, or is it too late? S3/Ep7
In Nashville, Kelly Quinn is brutally attacked in her own home by two serial rapists. Can the FBI catch her sick assailants before they strike again? S3/Ep5
When nine-year-old Jimmy Ryce is abducted at the bus stop, a local psychic claims to have visions of his fate; who has taken him and will he be found alive? S3/Ep4
After small town family man Andie is murdered at a shopping centre, the case goes unsolved for 15 years. Can the FBI unravel this sordid tale of adultery and greed? S3/Ep3
Teenage mum Rachel elopes with a mystery man and two weeks later her body is found chained and weighted in a lake. Who murdered her, and is her baby still alive? S3/Ep2
A predator in a white truck abducts a 10-year-old girl as she rollerblades in front of her house. Will FBI agents be able to find Pamela before it's too late? S3/Ep1
A pizza delivery man stuns the FBI when he robs a bank with a strange collar bomb around his neck, and is killed minutes later when it explodes. S2/Ep13
A pizza delivery man stuns the FBI when he robs a bank with a strange collar bomb around his neck, and is killed minutes later when it explodes. S2/Ep13
When the body of a little boy floats up in Waldport, Oregon, the FBI sets out on a search for his missing family. One by one, their murdered bodies appear. S2/Ep12
When Brian Wilson's wife, Inga, goes missing after a late night run to the store, no one is expecting her body to show up 15 miles away from their home. S2/Ep11
The body of a toddler girl is found in a box in a waterway. Investigators nickname her 'Baby Grace' and must rely on the FBI to crack the case. S2/Ep10
A young college student is abducted in broad daylight, leaving behind only a pair of flip-flops. The case will go cold for months before another assault takes place. S2/Ep9
A mother is killed in front of her quintuplet toddlers. Police quickly identify her assailant but they can't unravel his motive - has someone else masterminded a murder? S2/Ep8
After a man snatches a child from her bedroom, he assaults her, cuts her throat and leaves her for dead. Miraculously she survives her ordeal - but will she see justice? S2/Ep7
Mario is in prison for abduction and rape. When he manages to escape, he takes hostages, kills a cop, and leads the FBI on a wild chase. Can they stop him? S2/Ep6
Danny Ray robbed a bank and is implicated in a gruesome murder case, but he manages to walk out of prison in broad daylight. Can the fugitive stay ahead of the FBI? S2/Ep4
After a nurse misses lunch with friends, her car is found abandoned. The FBI is soon on the case - is a neighbour with a violent past involved in her disappearance? S2/Ep3
When several women are hunted and assaulted in Denver, the FBI fear they have a violent serial rapist on the loose. Can they catch him before he strikes again? S4/Ep10
When a 16-year-old girl is kidnapped at gunpoint by a vicious drug gang, Texas Police and the FBI launch an intense search. Will they find Lisa before it's too late? S4/Ep8
When FBI Special Agent Mike Clarke begins an Albanian serial murder investigation, his efforts lead to The Bronx, NY and the unsolved murder of Mary Beal. S4/Ep7
After three people are murdered in Jacksonville, the FBI and police track a man who dares to raft across the Rio Grande to seek refuge in a Mexican prison. S4/Ep6
When Robert O'Dubaine is found shot to death, this apparent gangland hit unravels into a case of betrayal, which sends the FBI on the hunt for a lethal temptress. S4/Ep4
The FBI search for missing 9 year-old Jessica Lunsford who disappeared from her bed in the middle of the night. But does someone close to home have something to hide? S4/Ep3
When a dozen young women turn up dead across St. Louis, the FBI work to piece together the identity of a sadistic serial killer before he strikes again. S4/Ep2
Loving mum Joanne never returns from a date with a handsome stranger. Cops identify him as an ex-state trooper - with a taste for blood - is she still alive? S3/Ep11
When a student is found dead at the university, cops quickly arrest an obvious suspect. But another murder proves they've got the wrong man; who is the campus killer? S3/Ep9
A serial killer is raping, killing, and burning women in Chicago. But how long will it take the authorities to connect the murders and stop the slaughter? S3/Ep8
Christine Aragao and her two young children are abducted in Miami days before Christmas. Can the FBI work out who has kidnapped them and why, or is it too late? S3/Ep7
In Nashville, Kelly Quinn is brutally attacked in her own home by two serial rapists. Can the FBI catch her sick assailants before they strike again? S3/Ep5
After small town family man Andie is murdered at a shopping centre, the case goes unsolved for 15 years. Can the FBI unravel this sordid tale of adultery and greed? S3/Ep3
Teenage mum Rachel elopes with a mystery man and two weeks later her body is found chained and weighted in a lake. Who murdered her, and is her baby still alive? S3/Ep2
A predator in a white truck abducts a 10-year-old girl as she rollerblades in front of her house. Will FBI agents be able to find Pamela before it's too late? S3/Ep1
A pizza delivery man stuns the FBI when he robs a bank with a strange collar bomb around his neck, and is killed minutes later when it explodes. S2/Ep13
The body of a toddler girl is found in a box in a waterway. Investigators nickname her 'Baby Grace' and must rely on the FBI to crack the case. S2/Ep10
When several women are hunted and assaulted in Denver, the FBI fear they have a violent serial rapist on the loose. Can they catch him before he strikes again? S4/Ep10
When a police dispatcher mysteriously disappears from her home the FBI and local police launch a desperate search to find her. Will they get to her in time? S4/Ep9
When a 16-year-old girl is kidnapped at gunpoint by a vicious drug gang, Texas Police and the FBI launch an intense search. Will they find Lisa before it's too late? S4/Ep8
When FBI Special Agent Mike Clarke begins an Albanian serial murder investigation, his efforts lead to The Bronx, NY and the unsolved murder of Mary Beal. S4/Ep7
After three people are murdered in Jacksonville, the FBI and police track a man who dares to raft across the Rio Grande to seek refuge in a Mexican prison. S4/Ep6
When two young girls go missing from a small California town, the FBI and local police go on high alert searching out a serial predator before he strikes again. S4/Ep5
When Robert O'Dubaine is found shot to death, this apparent gangland hit unravels into a case of betrayal, which sends the FBI on the hunt for a lethal temptress. S4/Ep4
The FBI search for missing 9 year-old Jessica Lunsford who disappeared from her bed in the middle of the night. But does someone close to home have something to hide? S4/Ep3
When a dozen young women turn up dead across St. Louis, the FBI work to piece together the identity of a sadistic serial killer before he strikes again. S4/Ep2