Samson works on the Mainland, but as of recently, has come to help out on Sodor. The first time he came, he was delivering huge dinosaur models bought by Sir Robert Norramby. However, he was too proud to ask how to reach the Earl's Estate, and wound up at the Blue Mountain Quarry! He had to spend the night there, and in the morning, he continued his course for Ulfstead Castle. When he arrived, he and Harvey helped set up the models. A near accident with Millie led to Samson teasing her about being scared, but she got back at him by making an illusion that the Earl's model volcano was erupting! Samson and Harvey, collectively, were quite startled!
On another occasion, the Fat Controller called him to Sodor to collect stone from the Blue Mountain Quarry. After telling the engines what his job was, he received a great deal of teasing due to his mistake when he first visited. He was so cross at the ridiculing, that he took Gordon's Express Coaches by mistake! Other engines tried to tell him, but he thought they were just teasing him and ignored them, until he made it to the quarry and realized that he had taken coaches instead of trucks! He went back to collect the trucks, but it was so late that he had to spend the night in the Quarry again.
During his visit, he was working near Crock's Scrap Yard when Scruff blew a gasket and had to be rescued by him. After taking the little tank engine to the Crovan's Gate Works, the Fat Controller asked him to do Scruff's work collecting scrap with Harvey. All went well, until Samson started to collect things that weren't scrap! Thankfully, the Fat Controller stopped him before anything important was scrapped.