Okay, this series is ridiculously complicated. But in a good way. So I'll c if I can give a breakdown that does it justice. The main story follows three young men. Little more than boys when the series begins, they must leave their small village, because they are Ta'veren. This basically means that fate is woven around them. That they all three influence the course of history purely by being present. But one of them is something even more. Now he's a big spoiler if you've never read it. But one of them is the dragon reborn. The reincarnation of the one man who stood against the dark lord. The embodiment of darkness which is currently sealed away. But the seals are breaking and the dragon reborn slowly comes to remember his previous life and so starts his journey to tarmon gaidon. The final battle against the dark one. But the dark one has followers and forced free to do his bidding and manipulate the world ready for his coming. There are several powers at work throughout the series including all the nations of this unique world. Also the Aes Sedai, women with magical powers drawn from the female half of the source. There is a male half as well. But it has been tainted by the dark one so that any man who wields it is doomed to go mad. They are now hunted and 'stilled' by the aes Sedai. Which means they are cut off from the one power forever. This doesn't tend to help their sanity much and many commit suicide afterwards. There are desert dwelling warriors who have a secret past and an important future. A great power from across the sea seeks to conquer the world at precisely the wrong time. And by god it's all epically awesome.