Stargate SG-1 - Season 3 (1999)

When the SG-1 team discover a sealed chamber of dead Goa'ulds, Daniel Jackson is exposed to the parasites that killed them and threaten to drive him insane.

While employing the help of a planet's highly intelligent children for a project, the team discovers their horrific imposed fate when they reach a certain age.

Alternate reality versions of Kawalski and Carter are caught at Area 51 after coming through the quantum mirror.

A bounty hunter, tracking down a Goa'uld, captures SG-1 and informs them that they too have a price on their heads.

SG-1 arrives on a planet where a culturally 'medieval Catholic' community lives in fear of a demon of Unas's species, which regularly collects human sacrifices to Satan, in fact hosts for system lord Sokar's army. When Simon implores SG-1 to spare his beloved Mary and take him instead, they even nurse her chicken pox. Simon hopes they are sent by God to deliver them from the satanic burden, but the canon who rules the village as 'spiritual' leader faithful to Sokar fears his authority challenged, which rests on his right to select the 'damned soul' to be sacrificed, ...

SG-1 come across another SG team being attacked by Jaffa. They offer to help but are shot by the SG team members. When they awake, they find out that the other SG team are Jaffa, loyal to Apophis, who are planning to infiltrate Earth. Can SG-1 convince them that Apophis is dead before the Jaffa fight to the death?

Responding to a help cry from Kasuf, SG-1 and more USAF wipe out a Goa'uld Jaffa guard to save most Abydonian slaves. When Amaunet turns her hand device on Daniel, he can't bring himself to shoot his beloved wife Sha're, but Tel'c saves him by fatally staff-shooting her; Abydononian funeral tradition squashes his hope of a sarcophagus resurrection. Crushed by grief, Daniel has apparitions by Sha're and once released from hospital resigns from SGC, claiming the quest for his wife was his reason to join; his former research assistant Dr. Robert Rothman succeeds him in ...

The team discovers an early industrial world with suffering from collective amnesia and has no elderly people.

Martouf leads a Tok'ra delegation with crushing news for Carter: her father Jacob/Selmak has been captured by Sokar and imprisoned on Netu, an Egyptian name for hell, on a moon of planet Delmal, from where nobody returns to suffer eternal torture, only Jolinar ever escaped. SG-1 mounts a rescue operation with Martouf, top-priority being any information Selmak can offer about Sokar's plan to subjugate the other system lords, an unprecedented threat for all humanoids in the galaxy. Teal'c must pilot a goa'uld ship and keep it in orbit as landing is impossible except by ...

Now Apophis has revealed himself, he promises the prisoners to overturn Sokar, which requires extracting an irresistibly valuable secret, to which end he drugs Sam with the truth serum 'blood of Sokar' and implants a memory device plus the drug to torture Jack in the persona of his dead kid son and Daniel for the location of his Harsesis son; Martouf's love for Jolinar makes him betray the Tok'ra are on planet Etnac- a convincing lie, so Apophis's plan to earn Sokar's gratitude and then kill him when rewarded with the lordship of Netu is on a shaky basis... Teal'c ...

An alien incursion takes control of the base.

The SG-1 team is requested by the Tollan to participate in a trial concerning Skaara and whether he has control of his body or the Goa'uld parasite, Klorel.

The SG1 team embark on a trip to visit a planet with an idyllic beach, but as soon as they step through the stargate, they find they are back in the SGC. They thought that they just left, but have been missing for hours. They soon discover that an alien device has been implanted in their brains and a being called Urgo reveals himself to the team. But no one else can see him and he is extremely irritating. Will they be able to extract him before they lose their minds?

After a cataclysmic meteorite bombardment, Col. Jack O'Neill finds himself stranded on a primitive planet with its Stargate apparently permanently inaccessible.

Col. O'Neill is dismissed from the SGC for stealing alien technology, and is subsequently approached to participate in an even more covert Stargate operation.

While redialing old Stargate addresses, the SGC discovers that a gate that was previously buried has become uncovered. They send a probe through and find two archaeologists. However, when they travel through the Stargate, they find that it is located in a society in civil war: one continent believes that the people were created by a Goa'uld, whilst their enemy believes that humans arrived from another planet - by the Stargate. O'Neill, Carter and Jackson are captured by the authorities and questioned, but Teal'c is wounded and blinded. Can he help SG-1 escape the ...

SG-1 believes they have finally found Keb, a planet with a temple where they believe the child of Apophis and Sharee, a Hersesis with all the knowledge of the Goa'uld, is being held.

The SGC send a MALP to a huge pyramid and inside they discover a crystal skull like the one Jackson's grandfather found many years before. SG1 visit the planet and whilst Daniel is looking into the eyes of the skull, as his grandfather did, an energy field envelops him. Teal'c fires his Zat at the skull, but Daniel has disappeared. Carter collapses and the team minus Daniel return to the SGC. Teal'c returns to collect the crystal skull, but will he be able to find Daniel?

Ready to go on vacation, O'Neill is beamed away by the Asgard. Thor tells him that Earth is faced with an enemy even worse than the Goa'uld.