I spent a few hours reading through the hundreds of Q posts with Mueller's name. I put together an outline to help me understand it. Here is a link to the outline, since it's long: https://pastebin.com/7xFiZKMP

The reference numbers are the post #s from qanon.pub. Maybe another anon can correct or expand, or make a graphic that prepares us for the Mueller testimony this week.

TLDR: Trump allowed their fake SC investigation which exposed their own treason and illegal schemes. It can now be used legally to bring them down. Mueller is trapped and the truth will come out no matter how he tries to play it. The Mueller testimony is their final DELAY card, and after they play it, full Declass and happenings begin.