From ABCMedia.net

Sydney defies her father in her attempt to rescue a kidnapped scientist (Christian Slater), while Sloane, seeking revenge, becomes more dangerous than ever. Meanwhile Dixon joins the CIA and Francie manipulates an unsuspecting Will for his agency connections.

Also, The Safe House has the promo pictures for this episode posted here: 2x19 Promo Pictures

From Alias Media:

Herc's Seen ALIAS 2.19!

Alias 2.19 FAQ

What's it called?
“Endgame.”

Who's responsible?
Teleplay is credited to the mysterious Sean Gerace.

What does TV Guide say?
“Christian Slater returns to complete his two-episode turn as a mathematician forced into Sloane and Irina's service. For weeks, Syd (Jennifer Garner) and the CIA have been searching for the abducted brainiac with no luck. Their big break comes when his wife (Tracy Middendorf) reveals shocking information that strikes a nerve in Jack and sends Syd to Russia against her father's orders. Back in the States, a grieving Sloane deploys the newly evil Francie (or whoever she is) to uncover - and assassinate - the person responsible for Emily's death. However, the hit hits a snag that changes one agent's life forever. Diane: Yvonne Farrow. Sark: David Anders.”

What shocking information does the mathlete's wife bring?
We learn before the opening credits that Jack Bristow and Neil Caplan have more in common than just having worked for Arvin Sloane.

So Jack continues to run the task force? How's Kendall holding up?
Kendall does not appear this week. There is much misbehaving under Jack's watch. “Jack is going to shoot you in the face,” Weiss tells Vaughn.

Sloane wants whomever killed Emily dead? Is she really dead?
In the opening shot we see Syd and Dixon standing over what looks like a black casket. So who knows?

Whom does Sloane decide is responsible for Emily's death? Dixon? Jack? Sure not Syd!
Dixon, though Sloane doesn't learn this until fairly late in the episode.

The big news?
Jack Bristow knew what Irina was up to all along, and secretly instituted appropriate countermeasures. He did such a good job, operational control of the task force is taken from Kendall and given to Jack.

Does Vaughn learn that “Francie” is evil?
No.

Do we learn this week “Francie's” true identity?
No.

Any other news on Sloane?
He's devastated by the loss of Emily. “I'm not interested in the database,” he tells Irina. “I wish I'd never heard [Rambaldi's] name.”

What's doing with Will?
Francie uses Will to gain access to satellite footage depicting Emily's shooting.

And Marshall?
Marshall discovers that someone's been downloading satellite footage without authorization. And he's confounded by Irina's beeping earrings. “Marshall's still trying to figure out how they receive anything, Jack tells Syd.

Is Diane Dixon sticking to her “it's me or the job” edict?
She completely recinds it this week! “When you first told me the truth, I said I didn't know who you were. I was wrong. I just didn't know what you did. I have always known who you are. You are the most decent man I know. Whatever you decide, I'll be with you.”

What's good?
Christian Slater. Travy Middendorf. The many surprises. The return of Irina's cell. Syd's daring escape generally and the use of The Breeders' “Cannonball” in particular. Syd's riding ability and her encylopedic knowledge of sorority ritual. Jack's enduring fatherly disdain for Syd's beaus. Weiss' line about sharing a cell.

What's not so good?
And it's a repeat next week. And wouldn't the CIA have Weiss' phone tapped too?

Will there ever be an “Alias” episode as good as the genius installment that ran after the SuperBowl?
“I feel like this year we have an even better ending," series creator told zap2it.com here. "If you're a longtime or a new fan of the show, I think it will blow your mind. It's that feeling of I have a giant secret that I just can't wait for everyone to see." And after tonight it's only three episodes away …

What was that prophecy again?
“This woman here depicted will possess unseen marks, signs that she will be the one to bring forth my works. Bind them with fury, a burning anger, unless prevented at vulgar cost. This woman will render the greatest power unto utter desolation.”

How does it end, spoiler-boy?
“Francie” drives out of shot.

Herc's rating for “Alias” 2.19?
***1/2

Maybe #3 was the agent who got blown up at the beginning of the season.

I thought tonight's eppy was good. And poor Dixon!

Sloane is incredibly dangerous because of his mental state. He's beyond reason. I'm glad to see him actually grieve over Emily, thought. It's nice to know the man has some kind of considering for someone besides himself. I wish she'd lived. She was a nice one to have around. Amy Irving did a good job.

Dixon's wife.