At Cannon Hall Farm, Helen Skelton and Jules Hudson witness dramatic arrivals as farmers Rob and Dave Nicholson welcome some `new kids' on the block. JB Gill visits the final contender in the Young Farmer of the Year contest, 28-year-old Adam Walton, who is following in his late father's footsteps to helm the family pig farm, while in north Wales, teenage champion shepherdess Erin McNaught is handed the reins by her retiring grandfather - right in the middle of lambing season.