A 28-story residential building in Jinan, Shandong province caught fire around 9 a.m. on Nov. 26. Four “spider-men” dressed in black arrived at the scene with ropes tied around their bodies, eventually carrying five residents out of the burning building. The mysterious rescuers weren't from the local fire department; instead, they were just four workers who were cleaning the exterior of a building nearby at the time of the fire.