BR once visited H.G. Island a long time ago, and caused trouble for the steam engines while he was there. During his visit, he found Cufferton, the engine responsible for keeping H.G. Island alive, and chased him, making him crash. Following the accident, Cufferton's caretaker, Eustace Bagge, hid Cufferton in his workshop and tried to restore him, but failed to bring him back up to steam.
Several years later, BR returned to H.G. Island when Geri was on a vacation, intending to destroy Cufferton once and for all. He was first seen by the Dragon Riders, Pete and Mighty Joe when he raced past them at the big station, and brought his two lapdogs, Tommy & Greg, to the railway, who were present when he was scheming. He caused several problems for the steam engines, such as dumping sneezing powder around their sheds and later destroying the scaffolding that had been placed beside the shed.
When Twilight Sparkle, Shining Armor, and the royals travelled across H.G. to find the windmill, BR found them and held them over the viaduct, intending to drop them. However, they've managed to escape when Cadance cut the wires to his claw with her lightsaber, causing him to fling them across the island and to the windmill. BR was later present at the docks, where he was covered in squashed fruit and vegetables after he crushed a barrel of them with his claw, and the crane accidentally dropped them on him when he was teaching Tommy & Greg “how to stop being stupid”. After Twinkle Sparkle flew in the air after riding the windmill's sails, he landed on BR's cab, who raced across the island and to the smelter's yard, where he tried to push Rachel and Twinkle into the melting pit. Fortunately, Twinkle and Rachel managed to escape by using the last of the former's gold dust.
After Cufferton was brought back up into steam and returned to H.G., BR found her and began to chase her along with Denzel Crocker, and he begins to chase Pete, and Eustace across the island, until they reached the viaduct. Cufferton, Eustace, and Pete managed to cross the viaduct safely, but BR was too heavy for the rails and plunged into a barge of sludge below the bridge, and was sent away in disgrace.
However, during the credits scene it shows that the Controller found him and is punished for lifting scrap into freight cars. Much to his anger and dismay.
- BR makes his first appearance in Cufferton: The Lost Hiatt Grey Engine.