A man's struggle against himself and against time. Kenyan runner Eliud Kipchoge dreams of completing a marathon distance of less than two hours. An achievement that is considered unattainable for a human being. Here we follow him as he prepares to break the impossible record. Is he able to break the magical two-hour limit and write history?。脑科学家单宇意外得知初恋闵英的死讯,闵英死前紧握着一根生日蜡烛;单宇点燃蜡烛,随着火光燃起奇迹发生——蜡烛竟能带他回到十年前!单宇多次穿越挽救爱情,却意外造成蝴蝶效应;一段隐藏十年的深情往事也浮出水面......。