On a cloudy day, in a small town, a carnival is going on. There's singing and dancing, kids with their bicycles storming up and down the road, families with their kids watching the games. Next to a big carousel, a three-year-old boy, is watching the activities from a distance, unattended and with a small note on his hand, crying inconsolably. The man operating the machine, observes the sad scene and asks the boy of the whereabouts of his mother and the content of the note. It seems that the poor boy, abandoned by his mother, has nowhere to go. From that point on, the boy will become part of a travelling circus and start a career as an intrepid trapeze acrobat. The boy will leave the circus and become a man, starting his own business, ultimately reaching the peak by being the biggest in his trade. Accomplished, married and divorced, with kids, wealth and recognition, will one day quit the firm and his current lifestyle, to set out on a solitary voyage of self-awareness, crossing the ocean never to come back and ending in Africa. There, the most improbable friendship will start and after two years of being presumed dead, a spark will rekindle, making him see that even if you've done and seen it all, you would be surprised at what life still has to offer... 人无完人。 萨姆三岁被母亲遗弃，在马戏团长大，取名雄狮萨姆。16岁时的一次演出意外，使他不能再登台了。多年后，萨姆已经经历了两次婚姻，有了一双儿女，成了一个大公司的老板。但他却感到这不是他的生活。他想象狮子那样自由，于是制造了自己驾船失事的假象，独自跑到非洲。不料，在这里他被一个法国青年认出，并在与这个年轻人的交往中认识到自己还没有尽完对孩子的义务。于是，他带这个青年回到法国，指导他帮自己的儿子管理公司，并撮合他与自己的女儿结婚。一家人因此团聚，而完成一切之后，萨姆快乐地回到了非洲。
