Here's how to quickly catch up on 'Game of Thrones' if you've never seen it

For five seasons, "Game of Thrones" has shocked, excited, and appalled millions of viewers.

And on Sunday, it returns for its sixth season.

Fans have cheered when favorite characters have won and screamed when they've died, and this next season is sure to bring more of the same.

For those wondering what this show is about or fans wanting a recap of everything that has transpired in the past five seasons, here's a very brief episode-by-episode breakdown of seasons one through five: