世界上最强的杀手邓肯·维兹拉(绰号“黑凯撒”)即将退休,但前雇主认为他会成为公司的累赘。迫不得已的他只能重操旧业,对抗一伙年轻、敏捷、残忍的杀手,为了干掉邓肯,他们将不择手段。The world's top assassin, Duncan Vizla, is settling into retirement when his former employer marks him as a liability to the firm. Against his will, he finds himself back in the game going head to head with an army of younger killers.