The main character watches his family die one by one when he is a child, the one responsible for it follows him wherever he goes. He eventually finds the woman he wishes to spend the rest of his life with and the start a family only for a freak accident to kill one of their children and seriously injure his partner. His partner eventually succumbs to her injuries and he has to fight off the guy who killed his family in order to save his remaining two children, unfortunately he can only save his youngest and almost dies doing so.
This is a childrens film about dinosaurs and I've just sat and cried pretty much all the way through. He's had such a hard life :(
*In my defense I'm very hormonal 