Sea shepherd Sandy gathers in a flock of wild sheep from a remote Scottish island by boat.

George and Sybil gather in their sheep from over six square miles of rugged mountainside.

Crofters club together to dip their sheep in insecticide before mating time.

In the east of Scotland, Martin's sheds are full of pregnant cows.

In the far north, John is expanding his flock and his land.

Sandy Granville surveys the damage to his croft after one of the worst storms on record.

Lambing season is just a month away. Martin tends to 500 pregnant ewes.

Spring arrives and John is expecting 6,000 new lambs, so hires in extra staff.

Bobby and Anne must gather their pregnant ewes from the hills ready for lambing.

Sybil prepares for George's birthday and the arrival of her sister and niece from England.

Martin prepares two young bulls for the Royal Highland Show in Edinburgh.

All the farmers from across the year reflect on what each season means to them.

On Mull, new entrant farmers Janet and Alastair take their lambs to auction.

Newlyweds Mel and Martin introduce the newest member of the family, four-month-old Erin.

Stevie risks the wrath of the buffalo mums when he ear-tags four newborn calves.

Robin and Penny's family arrive in the Highlands for the annual festive ceilidh.

Steven and Tracey turn to technology to increase their chances of female calves.

Alone on the farm, Mel must act fast to help a trapped bull.

Highland cow Goldilocks gives Janet and Alastair a fright when a calving goes wrong.

Mel tries every trick in the book to help a first-time mum bond with her lambs.

Weaning time at the buffalo farm gives Stevie and his neighbours a sleepless night.

David is beset by pests and, out on the hill, his lambs are under threat from predators.

Janet and Alastair find something very unusual in a group of young female sheep.

Dairy farmers Stuart and Aylett Roan take a break from the cows to prepare for piglets.

As the new year begins, we meet three new farming families. Father-and-son team Raymond and Johnny Irvine, Shetland sisters Kirsty and Aimee Budge and the Rodgers family in Co Down, Northern Ireland and buffalo farmer Stevie Mitchell returns.