James is settling back into life at home but still needs to find his feet with baby Jimmy as he's not yet confident with babies. Helen leaves father and son alone for the day to go up to Heston and realises how much Jenny has grown up in recent months, now best friends with newly arrived land girl, Doris. Meanwhile, Mrs Hall is caught in the middle of Siegfried and her new boss, Mr Bosworth as they fall out over some of Mr Bosworth's safety tactics.

Baby Jimmy joins James and Carmody on their veterinary round and charms the farmers. James does a good job juggling work and parenting until he gets distracted at Dowson's farm. Jenny tells Helen that she's not been up at the farm much since Jimmy was born but when Jenny decides to ignore Helen's advice and take their horses out, there are significant consequences. Helen and Jenny talk through their issues and Helen realises she needs to allow Jenny to grow up, even if it means her exploring the wider world. Mrs Hall and Siegfried find a poisoned dog and try to work out how what's happened.

Siegfried gains a newfound sympathy for Mr Bosworth. James admits his mistake to Helen.

Tristan settles into life back at Skeldale, but Carmody has taken his bed - and his brother! Mrs Hall schemes to bring the boys together and sends them to Pumphrey Manor after an alarming report of an escaped animal from the matron of the army convalescent hospital. Meanwhile, James hopes to reassure a worried Sid Crabtree when he's called out to treat a sick cow.