Kate Humble has already helped deliver lambs in readiness for the series
Nature presenters Kate Humble and Adam Henson will broadcast live from a sheep farm in Monmouthshire to capture the life and death drama of lambing season.
For five nights in a row, Lambing Live will show how the Beavan family copes with the new arrivals at their farm near Llantilio Crossenny.
For the past six months, they've been training Kate so she knows what to expect from this round-the-clock event.
The programme goes out on BBC Two Wales from Sunday to Thursday at 2000 GMT.
Kate has had a lot to learn about sheep farming for the series
The Beavans are a sheep farming dynasty spanning three generations, born and bred in the foothills of the Brecon Beacons, running two farms and a butcher's show in Abergavenny.
Lambing is a test of skill and endurance and Kate will be mucking in to ensure this lambing season is a success.
Jim has taken the lead in teaching the presenter everything from how to pick the best ram to how to raddle and trim feet and tails.
Kate, who lives in the nearby Wye Valley, revealed how she helped one ewe give birth to a lamb which was slow to follow its twin.
"I put my hand in and could feel two front feet at the entrance to the cervix," she said.
"Following up the legs, I could feel the muzzle. You don't have to pull; you gently help the ewe who is pushing anyway and work with her to gradually ease the lamb out.
"It's a cliché but it was a miracle - a living thing. There was a rush and this great big slippery black lamb was lying there.
"You rub it with straw and put it under the mother who licks it and within two minutes it's on its feet and suckling.
Kate and Jim Beavan's family have been farming for generations
"It was a fantastic moment, incredibly exciting."
Alongside the day-to-day action on the farm, Lambing Live will delve deeper into the secret life of sheep.
Countryfile presenter and farmer Adam Henson will be on hand to offer expert advice and examine the wider issues facing sheep farmers in the UK today.
From agriculture and history to economics and veterinary science, Adam will tell viewers the story of sheep farming in Britain past and present.
Lambing Live is on BBC Two Wales from Sunday 7 to Thursday 11 March at 2000 GMT nightly