Part 1 of Ultimate Adventure 2018. While UA2017 started on one of the hottest days of the year, UA2018 kicked off in the cool climate of Wilton, Maine, right after the skies had dumped rain all night long. With little fear of dehydration this year, the group rolled out for the Rocky Mountain Terrain Park in Carthage, Maine, to wheel some of the toughest trails in the Northeast. Huge rolling boulders and severely steep climbs make these some of the most challenging trails around when it’s dry. But add a whopping 24-hour deluge which only tapered off as the group was airing down and you know the action is gonna be epic. Will 21 vehicles make it through the day unscathed or will Mother Nature Prevail? Find out in Episode 1 of Ultimate Adventure 2018. For more action, videos, pictures check out fourwheeler.com/ultimate-adventure/.