When a malevolent force takes hold in the kingdoms of Agonos, a lone knight must embark on a perilous quest to find the last dragon, and save the world from this great and growing evil.

Andy French is an aspiring cartoonist who has trouble holding a job or a girlfriend even while he rooms with two other eccentric roommates in an apartment in the Mission Hill area of the city of Cosmopolis. The fact that he has to house his obnoxiously precocious younger brother, Kevin, is no help. However, this quartet of disparate individuals manages to struggle through life's bizarre trials even as they learn to get along. Written by Kenneth Chisholm

单身母亲Beth没时间谈情说爱，她集中精神于发展她的事业，而不是培养她的儿子。后来她认识了英俊的Nick，他似乎就是她梦想的男人，直到他宣布他是圣诞老人的儿子……

　　“钢铁骑士”曾是美泰一款风行全球的男孩人偶玩具，也曾被拍成电视系列动画片，此次真人电影版的故事是《雷神2：黑暗世界》（Thor: The Dark World）编剧克里斯托弗·约斯特（Christopher Yost）原创的。故事讲述16岁男孩麦克斯（Max McGrath）和母亲居住在一个小镇上，他的科学家父亲当年在他出生后不久就神秘死亡，麦克斯拥有一种他自己都无法控制的超强能量，直到遇到有着先进技术的外星人Steel后，才学会运用它，“钢铁骑士”就此诞生！

影片聚焦于平凡小市民的日常生活，通过闪回的方式讲述了一对夫妻的婚姻生活从最开始的幸福美满渐渐走向争吵不休...