The television series that documents Prince William's time with the Search and Rescue operations coincides with the news that the service is to be taken away from the RAF and privatised - a move that the prince is believed to have opposed.
ITV News' Royal Editor Tim Ewart reports:
Prince William is to feature in a BBC documentary about the Search and Rescue service, where he has served as a Sea King pilot.
You can watch a preview of the documentary below:
BBC One Wales have released a short preview video for Helicopter Rescue, the documentary featuring Prince William and the Search and Rescue team at the prince's base at RAF Valley on Anglesey.
The Duke of Cambridge is shown piloting a helicopter on a rescue mission to a slate quarry in Blaenau Ffestiniog.
One of his crew are winched from the ground after rescuing a boy who had fallen off an old railway bridge onto rocks.
"As captain you're trying to play out the entire rescue, the transit to the rescue and back again in your mind, and pick up any circumstances or problems you can foresee, and try and fix them on the ground before you get airborne," he says in the programme.
Prince William is to be the subject of a BBC documentary series featuring his work as an RAF search and rescue helicopter pilot.
Helicopter Rescue will air on BBC One Wales in April, and will show the Duke of Cambridge serving with C Flight of 22 Squadron at RAF Valley on Anglesey since 2010.
Speaking in the documentary, he said:
"There's no greater feeling than when you've actually done some good and saved someone's life," he said.
"I don't think there's any greater calling in life… to be able to see a son or daughter's face when you bring their mother or father back from the edge of death - it's quite powerful."
Helicopter Rescue will air on BBC One Wales on Monday 8 April at 8:30 pm.**
*Read more: *Final chapter in RAF Sea King search and rescue
Among the 12 bases from where search and rescue operations are launched is RAF Valley on Anglesey, where the Duke of Cambridge is based.
Under the contracts due to be unveiled tomorrow, the total number of bases is expected to be cut from 12 to10 although it is not clear which bases will be closed.
Assurances have already been given that the Duke will be moved to another part of the military rather than being employed by the firm that is awarded the search and rescue contracts.
Read: Government to announce sell-off of Search and Rescue service
Prince William's search-and-rescue base at RAF Valley on Anglesey was the busiest across the UK last year.
The team took part in more than 300 rescues, saving numerous lives on the mountains of Snowdonia and at sea. The Prince has been praised for his role in the rescues.
Dai Davies, the former head of royal protection for the Metropolitan Police, says accidents like these are embarrassing for the service, but that training for officers is very rigorous.
The Metropolitan Police Service says a royal protection officer who accidentally fired a gun while it's believed they were guarding the Duke and Duchess of Cambridge's home on Anglesey has been taken off firearms duty while the incident is investigated.
– Metropolitan Police Service spokesmanShortly before 1pm on Wednesday October 24 an on-duty MPS police officer unintentionally discharged a firearm while in an unmarked police vehicle.
The round damaged the floor of the vehicle. Another on-duty officer was in the vehicle at the time of the incident. Neither officer was injured.
The officers were on duty in north Wales at the time.
A Scotland Yard investigation's underway after a policeman thought to be guarding the North Wales home of The Duke and Duchess of Cambridge accidentally fired a gun while sitting in an unmarked car. Nobody was injured in the incident, which happened last week.
Prince William, or Flight Lieutenant Wales as he's known as an RAF search and rescue helicopter pilot, captains Sea King helicopters from his unit's base at RAF Valley on Anglesey.
