###### Episode 12 Explosions ! Trains ! Upload Date 24 November 2016 Length 5036 AdditionsChanges ' The Old Railroad ' entrance decorated with windows , wooden poles , wagon wheel , wooden barrel , train tracks , luggage , minecart , mooring bit , notice board , train buffer , ladder , wooden crates , clock , wooden bits , iron ring , pulleys , wanted poster , lanterns , gears and train track ' The Old Railroad ' entrance modified to accomodate clock ' The Old Railroad ' tunnel decorated with lantern strings Entrance rock formation modified to create ' mine pit ' around ' The Old Railroad ' Explosion triggers and rocks added to the Mine Pit on ' The Old Railroad ' Explosion triggers added to ' The Gold Rush ' Quotes Ooh yeah . Oh you ' re such a bad rock . Such a dirty , dirty rock . 4212 Episodes 110