The three brackets on the left are the different options for the final round. If all 5 teams make it through, then someone will have a bye, and it will then work like a normal bracket until 3 teams are left. Then there will be another round robin, like you played in the first round. If all teams are 1-1, then a final tie-breaker three way game will be played.
If only 4 get through then it will work like a normal bracket.
If 3 get through, that will mean that two of them were 2-0 in the 2nd round and the other was 1-1. The 2-0 teams will play each other for first, and the 1-1 team will win third.
Simple
Shadic wrote: Do we get like, something special if we win both games this round?
To answer your question, if you go 2-0 then:
Option one would be eliminated
Option two would mean you got nothing special (sorry)
Option three would mean that you get to play for first