DIY guru Donnie Dòtaman MacLeod returns with another series of fascinating challenges. In this programme, young brothers Rufus and Felix ask Donnie to build them a treehouse. In challenging conditions, will the young boys be impressed with the final hut Donnie has built?During the series, Donnie along with offering tips on some DIY jobs, meets some experts in the DIY domain and learns about a particular trade or practice. In this episode, he visits a shop in Oban that has caught his attention for all the DIY accessories available.Donnie also upgrades his own house and garden environment. He clears away an area full of discarded items and starts to build a shed to store any fittings and utensils.