Mac needs the help of a convicted arsonist recently released from prison to investigate the death of one of his FDNY firefighter friends.过了五分钟，只见原本(běn )奔(bēn )流的河流中，凭空(📓)出现了一座木(mù )桥，木桥宽约十米(mǐ )，两边(biān )有(🧤)护栏护住。