曹宜（徐若瑄 饰）是一位单亲妈妈，和儿子小虎（阿瑞 饰）过着相依为命的生活。为了维持生计，曹宜必须马不停蹄的工作，抓住一切机会赚取外快，这让她在公司里很不讨老板的欢心，甚至被外派，来到了摄影师小铁（黄晓明 饰）的身边当他的小助理。 小虎眼看着妈妈每天忙来忙去，却忘了关心自己，于是，他向圣诞老人许愿，希望妈妈能够变得像动画片里的机器人“玛德2号”一样强大和无所不能。连日的辛苦让曹宜出现了过劳的症状，将这一切看在眼里的小虎把过错怪到了自己的头上，他害怕妈妈真的变成了永不停歇的机器人，最后因为使用过度而彻底当机。为了避免这一现象的发生，小虎想到了一个绝妙的计划。Tells the story of single mother Cao Yi, whose everyday life consists of her finding ways to make money and raise her young son, Xiao Hu. However, Xiao Hu feels that his mother does not have enough time to spend with him, so he frequently acts out in response. He also fantasizes that his mother will turn into the legendary "Madeleine" robot. Coincidentally, Cao Yi's superior sends her to become an assistant to Xiao Tie, an eccentric photographer whose hobby is obsessively searching for UFOs. Because Xiao Tie was also raised in a single-parent home, he interacts with Xiao Hu in interesting ways and ultimately helps the young boy understand his mother's situation.
