Featuring a call made to emergency services by a woman who discovered her flatmate's body. Plus, a tiger is on the loose in a housing estate, causing panic amongst its inhabitants.

The horrific story of how a chimpanzee made a brutal attack that would change lives forever. Plus, a chilling call from an online predator that revealed a shocking murder confession.

A beautiful September morning in Kent turns to carnage when fog suddenly hits the Sheppey Crossing, creating one of the biggest road traffic accidents in UK history.

As runners neared the finishing line at the 117th Boston marathon, two bombs were detonated. Dramatic 911 calls and interviews tell the traumatic story of the attack.

A dramatic 911 call reveals that a helicopter crash has taken place, as a wealthy entrepreneur and his friends fly to visit his ranch in New Mexico. In north London, a worshipper becomes ill outside a mosque.

A tense 911 call reveals one woman's desperate bid to escape her abductor. As these crucial minutes unfold, she whispers to the 911 operator while the predator Shawn Grate lays asleep next to her.