Episode 4

In this episode, Dougie takes a walk along the John o' Groats Trail. He meets the man who created the route and discovers how it was inspired by the Appalachian Trail in Virginia. Dougie explores the stunning Caithness coast, discovering some of the hidden historic sites along the way, including the Whaligoe Steps.
Meanwhile, Rosie is further south in Easter Ross, where she investigates how drones are being used to calculate how much carbon is locked away on Scottish farmland.
Elsewhere, Arlene is testing the responses of the Galloway Mountain Rescue team in a fast-water rescue scenario. And we catch up with the work of our two rural vets as springtime brings new life to Scotland's farms.
Trailer
Recently Updated Shows

Resident Alien
Resident Alien is a dark, twisted and comedic fish-out-of-water story that follows a crash-landed alien named Harry who, after taking on the identity of a small-town Colorado doctor, slowly begins to wrestle with the moral dilemma of his secret mission on Earth — ultimately asking the question, "Are human beings worth saving?"

Foundation
When revolutionary Dr. Hari Seldon predicts the impending fall of the Empire, he and a band of loyal followers venture to the far reaches of the galaxy to establish The Foundation in an attempt to rebuild and preserve the future of civilization. Enraged by Hari's claims, the ruling Cleons – a long line of emperor clones – fear their grasp on the galaxy may be weakening as they're forced to reckon with the potential reality of losing their legacy forever.

The Masked Singer
Based on an international hit, which already is a viral phenomenon with more than half a billion fans worldwide, and the No. 1 top-trending video of 2017 on YouTube, The Masked Singer features celebrities facing off against one another with one major twist: each singer is shrouded from head to toe in an elaborate costume, complete with full face mask to conceal his or her identity. Ken Jeong, Jenny McCarthy, Nicole Scherzinger and Robin Thicke serve on the panel and play detective, alongside host Nick Cannon.

When Hope Calls
When Hope Calls tells the story of sisters Lillian and Grace who open an orphanage in the 1916 Western town of Brookfield. Caught between the traditions of cattle ranchers and the ambitions of a growing town, they strive to find romance and happiness while overcoming the challenges of helping the children in their care. Throughout their journey, they discover community, acceptance and love as they create the family they always longed to have. Familiar faces from Hope Valley, including Rosemary and Leland Coulter and Mountie Nathan Grant will be visiting Brookfield throughout the season.

Silo
In a ruined and toxic future, thousands live in a giant silo deep underground. After its sheriff breaks a cardinal rule and residents die mysteriously, engineer Juliette starts to uncover shocking secrets and the truth about the silo.