Every year, the elves come from his magical world to bring humans a new spring. Tim is a new one this year. Distracted by the attractive sound of the fair, he wanders away from the other elves, being captured by former trapeze artist Samuel, who brings him to Vladimir, owner of a circus who exploits him as a fairground attraction. Teresa, a naughty 6-year-old girl, is jealous of her little brother, baby Jon. When visiting the fair, she discovers Tim while he is being exhibited and she will become infatuated with him. Tim, at the same time, will see in her an opportunity to escape. Hidden in Teresa's house and protected by her, they live several adventures, becoming inseparable friends. Over time, matching with the end of the spring, Tim begins to transform in a Little tree. He has been away from his world and his people for too long, and only by helping him to return will Tim be saved. There is no time to lose, but be careful Vladimir is lurking.
在一个本应平和的日子里,美国队长(罗杰·克莱格·史密斯 Roger Craig Smith 配音)和钢铁侠(Adrian Pasdar 配音)两个好友彼此角力,互不服输,但彼此的友情也在这一过程中得到见证。另一方面,野心勃勃的红骷髅(Liam O'Brien 配音)绝不甘心此前的败绩,他雇来掌握了复仇者联盟超级英雄们全部技能的模仿大师(Clancy Brown 配音),发誓要彻底摧毁美国队长和钢铁侠这两个难缠的对手。按照之前的计划,一队九头蛇士兵入侵斯塔克的飞船,盗走了威力强大的斥力加农炮;与此同时,美国队长遭遇模仿大师,最终成为对方的俘虏,面临着被红骷髅转化的厄运。 在红骷髅的阴谋驱使下,一对昔日好友成为了正邪死敌……