Quest Red

Investigators brave alligator-infested waters to help save an injured alligator. Meanwhile, 400 farm animals are rescued in Miami's biggest ever seizure.

The team race to the aid of a man who has nearly severed his hand with a circular saw. And, a hotel worker needs treatment for intense chest pains.

The team face a challenging landing in the courtyard of a beautiful 18th century building. An elderly woman needs treatment after being hit by a bus.

An attempted arrest turns nasty as a suspected thief gets violent with officers and a brazen burglar nearly eludes police in a daring escape attempt.

A carefully organised drug bust catches two suspected dealers off-guard in Burton and a knife amnesty leaves a team of experienced police officers in a state of shock.

In Nottinghamshire, 1983, a 16-year-old girl is found raped and murdered. Decades later, advances in forensic technology enable police to find a DNA match.

Linda Singleton's life seemed perfect. But under the veneer she was engaged in a love triangle that turned deadly when her secret affair was exposed.

Favourite Son. Billy disappears just after finding out his girlfriend is cheating on him. Is she behind it, or will a perpetrator emerge from beyond the grave.

In 2015, Edward Lowry was found savagely beaten to death in South Dakota. With little evidence left behind, can police piece together Ed's last moments from CCTV.

Bestselling author, Helen Bailey, was a wealthy widow. After finding love again with Ian Stewart she vanished. He helps in the search - but was it a cover-up.

Rebecca Thudin was a successful, driven woman who seemed to live the perfect life. But, after meeting an older man at the gym, her life takes a dramatic turn.

Carol-Ann and James Sharp seem like the perfect couple. But behind the veneer of happiness in home movies lie dark secrets - and an unlikely killer.

A group of men discover a woman's body in a park in Red Valley, Arizona. Investigators have leads, but can they gather enough concrete evidence.

The murder of two children sparks a manhunt that spans three decades. Plus, the National Crime Agency attempts to thwart a gun smuggling operation.

In 2016, father of seven, Craig Rideout, is reported missing after a strange home intrusion. Using surveillance footage, police unravel an unbelievable plot.

In the 1970s, a radical group kidnaps heiress Patty Hearst and brainwashes her into joining their organisation. Together, they commit a series of violent crimes - including murder.

Indiana police rely on an unlikely source of information as they search for the person responsible for the shooting of 28-year-old D'Angelo White.

In 2010, three men are murdered in a convenience store. CCTV uncovers evidence of a robbery gone wrong and offers clues to the killer's identity.