Everyday Heroes: On the Frontline

A night shift takes a violent turn as frontline staff come under attack from a patient.

How the crew of HMS Queen Elizabeth breathe life into Britain's biggest warship.

A teenager is the prime suspect when a 12-year-old boy is fatally stabbed in a park.

The critical first two days of the investigation into the murder of a man in his flat.

Police tackle suspected salmon poachers on the Isle of Lewis and a drug gang in Inverness.

Rare penis cancer and severe endometriosis require radical procedures.

Vascular surgeon Lewis Meecham is pushed to the limits by another wave of emergency cases.

Anna and Perri race to a domestic incident. A crowd confronts a convicted sex offender.

An axe attack prompts a police operation to take down Rochdale’s most notorious gang.

A road worker is hit by a modified car during a police pursuit.

Dermot O’Leary uncovers the RNLI’s heroic efforts in World War II.

A suspected drug user brings big trouble to a popular festival.

A 22-year-old officer attends her first sudden death.

Can detectives find the man who kidnapped and sexually assaulted two schoolgirls in 2002?

A freak farm accident and deadly predators - rural lives hang in the balance.

Amid a cybersex crime wave, James Blake investigates social media and harmful content.

Mikey joins the trauma team, who help a teenager brought into A&E with severe concussion.

A young hiker finds himself trapped on icy mountain ledge surrounded by vertical drops.

HMS Queen Elizabeth sets off on her first operational deployment to the South China Sea.

Billy Billingham joins Greater Manchester Police to take down a suspected drug kingpin.

Ocean Pride targets shipwrecks off Cornwall. Crabber Tydus welcomes a greenhorn onboard.

An accidental explosion sets police on the trail of a major drugs gang.

First-time junior doctors start work on the hospital front line.

Emma gets a tour of her new patch with tutor Ash.