by Gina Scarpa

It's been quite an emotionally charged week in the Big Brother house! Amanda and McCrae were blindsided and nominated together for eviction, McCrae won the veto, and Spencer volunteered to Gina Marie to go up in his place. All signs point to Amanda leaving the house but a very unlikely alliance has formed that could save her.

In order to stay, Amanda is going to have to campaign to everyone and that includes her enemy Elissa. Her pitch to her? I'm a big a target than you, so keep me around. Much as I don't want her to stay, it is a good argument and Elissa takes the bait. She gives Amanda her wedding ring as a symbol of trust and the two pitch Andy on a final four deal. He, in true Andy form, looks like he's going to throw up and runs out of the room as quickly as possible. Heaven forbid he just own up to his game!

Julie lets the houseguests know that they're part of a very special Big Brother milestone - it's the 500th episode! It's also a double eviction night so it's time to get right to the voting. It comes down to a tie (Judd and Andy to evict Amanda, McCrae and Elissa to evict Spencer) and Gina Marie breaks it, telling Amanda to "get to steppin". Yep, people still say that.

It's very clear the audience doesn't like Amanda and she did admit that she could've done some things differently but doesn't necessarily have regrets. After the show, McCrae is planning to move to Florida with her and who knows? Maybe he'll bring $500K with him.

In the backyard, the houseguests compete for HOH and must search for two dog bones. Who else is cringing thinking of Jeff and that damn clown shoe?! McCrae wins, immediately nominating Gina Marie and Elissa. Then, it's right to the POV where players have to move a key through a maze. No one is quite as fast as Ian last year, but Judd finishes first and keeps nominations the same.

By a unanimous vote, Elissa is evicted from the Big Brother house and the remaining houseguests must be freaking out on the inside. In a matter of an hour, they took out two huge threats to win this game. The Exterminators are clearly the best alliance of the season. Moving Company, Schmoving Company.

Find out who wins HOH on Big Brother, Sunday night at 8/7c on CBS.

(Image courtesy of CBS)

Follow Gina @ginascarpa