忠(🈯)臣宋沅被奸(🔨)相贾(jiǎ )守道陷害(hài )入(📒)狱(🏽),只(zhī )有携先皇所赐的(de )「免死铁券」(🍥)上京(jīng )伸(shēn )冤,方可(kě )(🐉)免罪(zuì )。贾守道派出锦衣(yī )卫高思(sī )贤(王侠饰)搜夺(♑)铁(📼)券,以(yǐ )置宋(sòng )沅于死地;(🤷)宋(sòng )妻及女(🕖)宋洁(李菁(✳)饰)将「(🚉)免(miǎn )死铁券」藏(📞)于琵琶中(zhōng ),沿途卖唱掩(yǎn )饰。无赖吴三(魏(🐖)平(🤷)澳饰)得知宋氏母女真(zhēn )正身(📯)份,心想(xiǎng )利(🖲)用她们(💱)换贵官高禄,将(jiāng )高思贤引(📙)来,混(hún )乱(🏂)中「免死(🌞)铁券」被做(🙉)在砖內,却(🈴)无人知晓(xiǎo )……