Hey, I'm generally no idiot.. but, someone, please, I beg of you, explain the plot of Tsubasa to me

Anything/Everything from after the Reservoir point would be good. I haven't read it all yet, but I'll ignore parts that I haven't read. And, for the sake of new readers, type it in blocker quotes I guess : ) Thank you, thank you, thank you. I am dying right now trying to read this. Too much
crap, I can't take it anymore!
Props to anyone who can outline this for me, I love you man