After many years of working successfully together, Mike and his classic steam shovel Mary Anne face competition from more modern gasoline, electric, and diesel motor shovels.
迈克和他的老式蒸汽铲“玛丽·安”已在一起工作很多年了，他们正面临着来自用电、汽油和柴油驱动的更现代化的挖掘机的竞争。