Exodus

"Exodus" is the twenty second episode of the fourth season of Stargate SG-1.

Plot
A Goa'uld Ha'tak appears in orbit of the planet Vorash, the current main base of the Tok'ra. SG-1 transports down, much to Tanith's surprise. Col. O'Neill and Teal'c meet with the council where they reveal to Tanith that they know all about him being a traitor. He is then imprisoned and Teal'c visits him. He informs Tanith about what will happen to him and they also talk about Shan'auc.

On the ship the Tok'ra prepare to evacuate while Jacob talks with Jack about the ship and the Goa'uld. Jack states that they are lending the ship in exchange for learning how it works; Jacob reminds him about when they tried to retrofit a death glider. Jack states that they have been smart enough to steal the Ha'tak in the first place, more so than the Tok'ra have even thought to do. Jacob points out that SG-1 has been knocking down System Lords one by one, resulting in more power hungry Goa'uld to take their place, reducing the Tok'ra chances to defeat the Goa'uld once and for all. They have a plan but are still working on it.

In his cell Tanith talks with a guard and then collapses (and is said to be dead by the guard). When the guards enter the cell he kills them and flees. He returns to the surface and uses a Goa'uld long range communication device to contact Apophis. Teal'c then searches for him together with the Tok'ra. Meanwhile Jack and Daniel are informed by Major Carter and Jacob that Apophis is coming and that they plan to destroy his fleet by blowing up the sun of the solar system. This would be done by throwing the Stargate currently on Vorash into the sun while it is connected to P3W-451 – the planet where they found the black hole. The gate would suck in enough mass from the star to cause it to supernova. Jack agrees to the plan. Later Daniel talks with Teal'c about his revenge on Tanith.

After the Tok'ra are all evacuated, SG-1 and Jacob fly to the sun where they are able to connect the Stargate onboard to P3W-451 as planned. They then send it to the sun and wish to flee. Suddenly an Al'kesh, a Goa'uld mid-range bomber, de-cloaks and attacks. Although Teal'c fires back he can only make one hit. Finally the Al'kesh is able to damage the ship, so that they can't enter hyperspace. Jack and Teal'c then board a Death glider to fly to the Al'kesh but before they can fire it flies back to the planet. Teal'c follows it, despite Jack's worries. On the Ha'tak Jacob and Sam start to repair the ship's systems. At the planet Teal'c and Jack are able to destroy the Al'kesh (much to Tanith's shock, who was waiting for it on the planet) but they are caught in the explosion. Jack can only send an emergency call to the Ha'tak, where Jacob and Sam are partly successful with their repairs.

Back on the planet Jack and Teal'c are unharmed although their glider crash-landed. They intend to go to the Tok'ra base to find Tanith. However, Apophis' fleet appears and he sends two Jaffa to retrieve Tanith. The repairs on the Ha'tak are finally complete and so they can hide from Apophis. At the location of the rings Teal'c is shot with a staff weapon and Jack is stunned by a zat, but is able to kill the two Jaffa attacking them before ringing back to the Ha'tak.

Jacob launches all the Ha'tak's gliders, which are programmed to flee the solar system. Apophis follows them but soon realizes that it was a trick. In the meantime Jack is rescued from the planet by his teammates. Finally, the sun explodes and SG-1 flees, while Apophis' fleet is destroyed. Suddenly SG-1's flight through hyperspace is interrupted and when Jacob scans the area they realize that they crossed four million light years in mere seconds. Apophis' mothership appears, trapped with them far from home.

Notable Quotes
(After revealing to Tanith that he had been used by the Tok'ra)

Tanith: You will never escape. The System Lords will hunt you down to the ends of the galaxy.

(Tanith is taken away by the Tok'ra guards)

O'Neill: That guy is a living cliché.

Upon using the rings to get inside the Tok'ra base

O'Neill: (to two Tok'ra) So how do you guys know where to stand, anyway?

(The rings beams them down)

Jackson: Any sign of him?

O'Neill: No, he's still looking.

Jackson: You guys have been out there for hours already.

O'Neill: Yeah, it's a jaffa revenge thing...

After O'Neill's and Teal'c's crash-landing

O'Neill: Ah, this is a bad idea. I said that remember? Remember I said 'General, this is a bad idea!'?

Teal'c: I remember, O'Neill.

O'Neill: Let the Tok'ra get their own ship!' I said, 'they don't share with us, why should we share with them?'.

Teal'c: I remember.

O'Neill: Yep, that's what I said.

Teal'c: How much time remains before the sun explodes, O'Neill?

O'Neill: Huh? Oh... 45 minutes.

Teal'c: Then at least we have prevented Tanith from escaping.

O'Neill: Yes! At least we have that!