It was a unanimous vote to evict Jag, however, as he was about to open the door a message came in the bank tube.
The Power of Invincibility was used to save Jag.
Matt was the winner of the Power of Invincibility and he only told Cirie. The two of them decided to save Jag even thought it meant Cam could play in HOH this week. They trust Jag and think he will play hard for the win and be loyal to them.
Since no one left this week, everyone is able to compete in the HOH, even Cam the outgoing HOH.