Sweeny heads to Shetland for the first time to find out more about crofting life in the Northern Isles. The main purpose of his trip is to check out a new type of building that could make a big difference to his future plans in Lewis. With the crows and ravens a threat to his sheep and lambs, this could provide a safe place to be, as well as protection from the weather. Designed by a Shetland company, it has a strong green ethos at its core, and is similar to a polytunnel but much stronger, and able to withstand 120mph winds!