Fri, Jan 30, 1998
On their first visit to a new planet, SG-1 finds it subject to totally destructive volcanic activity and saves ten natives, the Tollan, a far more technologically advanced society. Their leader Omoc isn't grateful, nor interested in such a primitive race as the earthlings or any of the 'even more primitive' planets which are prepared to host them. Only one Tollan, Narim, shows an active interest in life on earth, especially in captain Samantha Carter and the cat Schrodinger she gives him, explaining his planet was destroyed after the Tollan supplied an unlimited energy source to a primitive neighboring planet which abused it for a cataclysmic weapon. Meanwhile, the White House authorized NID colonel Maybourne to take charge over the Tollan for military purposes, exactly Omoc's nightmare.
Fri, Feb 20, 1998
While collecting artifacts on a distant planet, Daniel Jackson is knocked out after touching a mirror-like object. He awakens in the same room but is unable to locate the other members of SG-1. Assuming that they left without him, he dials up his return home but gets there to find that he is in a different reality. In this world, General Jack O'Neill and Catherine Langford are in charge of the Stargate program; Hammond is a Colonel reporting to O'Neill; and Sam Carter is a civilian scientist working on the project (and also engaged to O'Neill). More importantly, Earth is under attack from the Goa'uld who have already killed over 1 billion people. Carter believes that somehow, Jackson is from a parallel dimension. When Jackson learns the point of origin of the Goa'uld attack, he wants to return to his own universe, believing that his Earth will be similarly attacked.
Fri, Mar 6, 1998
General Hammond has tried everything to get the Senate's decision to shut down his Stargate program undone, but the President personally refuses to 'commit political suicide': the Stargate will be buried. Daniel's insistence -that the danger for Earth as a whole outweighs everything- convinces his colleagues to ignore Hammond's command and dial the address that the Goa'uld invasion started from in the alternate reality that he visited. They arrive not on a planet but a new, superior type of starship, already launched by hyper-drive. A 'video' proves it belongs to Apophis, who gives command to his son Klorel, whose host is none other than the team's young Abydonian friend, Skaara. Overpowering Skaara seems their best move, while Sam installs explosives in the death glider deck with a 24-hour timer just in case, but the Jaffa manage to liberate Klorel. Jack discovers that the ship goes far faster than expected.
Fri, Jun 26, 1998
As the Goa'uld attack fleet approaches Earth, all four members of the SG-1 team are taken prisoner. They get help from an unexpected source when Bra'tac, Teal'c's mentor, reveals that he is on board. Apophis has delayed the attack until his son Klorel is revived, giving them some time to prepare. SG-1 has used all of the C4 on one of the two ships but must find a way to dispose of the second. Back at Stargate Command, Lt. Col. Bert Samuels arrives as a Pentagon liaison officer but also reveals a new weapon they have developed. General Hammond is dubious. They begin to transport humans to an Alpha site in order to ensure the continuation of mankind.
Fri, Jul 17, 1998
Exploring a strange and beautiful garden, SG-1 comes across a dome containing a race that are connected to machines. The team are captured by the machines and rendered unconscious, but awake to find themselves reliving pivotal moments of their lives, over and over again. Then they discover it is virtual reality and a mysterious keeper appears to persuade them to try different outcomes for the moments. But can the team escape his clutches, when they don't know what is real and what is not?
Fri, Jul 24, 1998
While walking through a forest on another planet, Jackson saves the life of a beautiful princess who is about to kill herself. SG1 is taken prisoner, but Daniel is freed by the ruler when he finds out that he saved his daughter. The rest of SG1 is sent to work in the mines for the rest of their lives. Jackson falls in love with the princess, but also becomes intoxicated by frequent use of a Sarcophagus. Will he come to his senses before the rest of SG1 are worked to death?
Fri, Jul 31, 1998
O'Neill and the team return to Cimmeria, the planet where they destroyed Thor's Hammer to help Teal'c escape. They find that the Goa'uld have invaded and many of the people are dead. Can they help to find Thor's weapons to fight off the invasion before they are all captured or killed?
Fri, Aug 21, 1998
While O'Neill and Carter head to Washington to be decorated by the President and find a security leak, Jackson and Teal'c go to Abydos (after they unbury their stargate) to see Sha're's father. They arrive to tell him that they have been unsuccessful in finding Sha're, only to discover that she is already on Abydos. But they find that she is pregnant by Apophis and the baby holds the secrets of the Goa'uld.
Fri, Oct 2, 1998
When Teal'c makes Sam Carter realize how valuable the knowledge left by Tok'ra Jolinar in her brain and the chance for an alliance can be, they convince General Hammond to let SG-1 attempt a meeting. They arrive on a planet which is deserted on the surface, but are awaited by well-camouflaged, armed Tok'ra who bring them to tunnels which they create by means of a mysterious crystal, which can also undo them afterward. Both parties are quite suspicious, the team feels like captives, and indeed, the Tok'ra leader Yosuuf fears they cannot be released, at least until the whole site is moved. Meanwhile, the Tau'ri barely overcome their suspicion against the Tok'ra Goa'uld biology (with symbiote), when asked to volunteer themselves as 'hosts', and Carter learns Martouf (and his symbiote, Lantash) was Jolinar's lover, hence has a special connection with her.
Sun, Oct 11, 1998
The attempt to forge an alliance with the Tok'ra seems a miserable failure, as SG-1 is practically imprisoned as a security risk and considered virtually hostile because 'blending', by agreeing to host a symbiote, is a bridge too far for each of them. When SG-3 arrives and informs Sam about her terminally ill father General Jacob Carter's quickly worsening condition, she realizes the symbiote's healing powers, confirmed to apply to cancer, make hosting an offer to good to refuse for him. Garshaw allows Sam and Jack to return and convince both generals to allow the plan, which is achieved. Meanwhile, the Tok'ra must hastily evacuate, destroying tunnels behind them, because a large-scale attack by Apophis's troops is expected soon, while Jacob meets his potential symbiotic partner Selmak and his equally terminal predecessor to help him decide. Jack verifies his strong suspicion there is traitor among the Tok'ra who is communicating with the Goa'uld.
Fri, Oct 23, 1998
SG-11 failed to report regularly while mining trinium, a vital mineral for earth's defense against the Goa'uld. SG-1 finds them missing, and all traces cease at the site of arrow-heads made from trinium. Then they are all sedated by such arrows and brought to the village of Tonané, whose earthly tribal ancestry Daniel identifies by its animal totems. However, they are soon awake and released, their guns even returned, and promised to get their friends back, too, from the wolf spirit T'akaya, and the raven-shaped supreme spirit Xe'ls. The council of elders refuses to allow resuming of the mining, which is disrespectful to nature, but Tonané is delegated to be shown alternatives on earth. Both teams return to SGC, or so it appears; in fact, SG-11 is a series of incarnated spirits, who are soon convinced the earthlings are most untrustworthy.
Fri, Oct 30, 1998
A climate control device is stolen from a planet and SG-1 is accused of the theft. They have to find it and restore it before the planet freezes. Then weather on Earth starts to unexpectedly change and the team believe that the device has been stolen by rogue NID agents. Will they find it in time and how did the NID travel off world?