A few videos to summarize the events
The Beginning of the End
Although there is no exact order to the beginning of the end events, 3 important things will occur. There will be a 3 year winter: Fimbulvetr, with no springs or summers, nothing will grow, and the world will be covered by darkness. There will be large scale wars amongst mortals, even families will turn on and fight against one another. Also, all signs of morality, goodness, and righteousness will disappear.