In a race against time, good Samaritans sprang into action as a man in a wheelchair fell onto the subway tracks at Manhattan’s busy Union Square station Wednesday. Dramatic video shows the rescue unfolding as an oncoming train was seconds away. The video, which was caught on camera by WCBS writer Lauren Mennen, shows one hero jumping onto the tracks to save the man and pull him out. Mennen said that the good Samaritan “didn’t think twice whether he was going to go on those tracks.”