Annie Walker's dead. 

At least the CIA Operative Annie Walker is gone. She was shot to death by Calder Michaels and in her place a new woman was resurrected, Jessica Matthews. This new dark-haired woman has one single focus: bring down Henry Wilcox.

The transition from Annie to Jessica was more than just physical appearance. She showcased her hardcore determination through her hair, clothes and even in choice of a motorcycle. Piper Perabo rocked the long, dark hair and kick-ass look.

In order to uncover Henry's plan, Annie's first target was Henry's ex-wife, Sana. Annie believes that Sana has some knowledge about what Henry's planning since he had lunch with his ex-wife before the helicopter explosion. 

Annie may be determined, but she's definitely not the most subtle person. When she first met Sana she immediately brought up Henry. Even though it was indirect, it was a huge tell. Sana may not be in the intelligence game (though she could be), but she was married to Henry.

With only six episodes left in Covert Affairs season 4, the story moved along at lightening speed, which worked well. Annie and Sana bonded extremely fast, yet it felt authentic. Sana knew that there was something suspicious about Annie and as she said keep your enemies close. 

Even though Annie and Sana were suspicious of each other, they had a natural ease when together before the truth was revealed. At some level, they saw the good in each other. Even after Annie kidnapped Andrew Goodman, Henry's guy, Sana trusted Annie enough to go with her. 

Their partnership, even if temporary, is extremely dangerous for both of them. If Sana believed that Henry would send someone to watch her, it's likely that he's done that. The longer Annie stick with her the greater the chance that her fake death will be found out by him.

With Goodman dead, the trail will get hot very fast and the blow-back could easy hit Sana and David. Will Annie be able to help them? It's difficult to know because Henry's plan is such a mystery. Did he want Sana back for love? Or, did he want to use her and David for his mission?

Back in DC, the CIA was left to deal with the aftermath of Annie's death. With the exception of Auggie and Calder, everyone believes she's dead, including the Campbells. That's not going to go over well when they eventually find out the truth.

Though, it makes sense to keep both Joan and Arthur in the dark. They have enough troubles of their own. It was tough to watch Joan grieve for Annie and get so angry about Calder's relationship with Henry.

Auggie and Calder's fight after the interrogation was believable. At first, I even bought it and was confused. They have done an excellent job of covering up the fact that they are working together. That will help make their own mission to investigate Henry all the easier to maneuver. Auggie can work it from the outside, while Calder can inflitrate and manipulate Henry from the inside.

The idea of planting the seed of a blue file in Henry's ear will surely make him watch his step. And, since Calder revealed the investigation, it bought him some trust from Henry. Annie may not be working in direct cohorts with Auggie and Calder, through their various angles, they should be able to make a dent in Henry's plans. Well ... if anyone can.

They've put themselves in a very dangerous position by working outside official CIA channels, but it's the only way. Too many people have died due to Henry and no one else seems to be wise to it.

Only five episodes left. Will Annie, Auggie and Calder be able to outsmart Henry? 

"Dead" Odds and Ends:

• Eric wore a black ribbon for Annie, "Will all due respect, she was still a friend."
• Henry was concerned that Annie said something before she died. Nice response by Calder, "Nothing."
• Joan is stuck analyzing photos? I guess she's lucky to even be allowed back into Langley. As respective as ever, "Every department matters."
• Annie's "fake dead brother" was Theo. It was all about Teo. So sad. Covert Affairs writers -- it's not too late to change your minds and say his death was faked.
• Nice callback to explain why Henry supported Calder's appointment to the DPD.
• Annie: I'm already dead. | permalink
• Goodman: You know, if you were any good at this one of my fingers would already be gone.
  Annie: Too much blood. | permalink
• The back and forth between Annie and Goodman during her interrogation of him was hilarious and well-written. He put up a good front trying to school her. He did get an opportunity to escape, but he ended up dead instead.
• Where to now, Annie and Sana?

Carla Day is a staff writer for TV Fanatic. Follow her on Twitter and on Google+.