It's supposed to be a documentary about a man who lives with his wife and dogs in The Rockies, in Canada.

documentary 是由名词 document（文件、记录）加上后缀 -ary 构成的名词，表示"记录性质的"，特指"纪录片"这种影视作品形式，通过真实记录来展现某个主题或事件。