熊大、熊二、光头强意外地和来自未来世界的小亮一起穿越到100年后:世界发生巨大灾变，孢子植物全面侵占，人类在末日中艰难求生，整个地球危在旦夕!而这一切的罪魁祸首竟是……光头强?! 100年前究竟发生了什么?小亮是敌是友?光头强为何背负恶名?人类命运最终会走向何方?熊强三人组能否穿透这层层迷雾，重启未来? When Vick, Briar, and Bramble cross paths with a boy from the future called Saylor, they are thrown forward in time to the youngster's bleak reality. This is an age in which humans struggle to survive on an Earth infested with deadly spore plants. Now they've confronted doomsday, what will they do to rewrite their story?