26/06/1998      The Serpent's Lair

Teal'c's former mentor Bra'tac joins their fight and together they embark on a mission of planting bombs to destroy Apophis' ship and halt the attack on Earth. Eventually they destroy the two ships and escape in Death Gliders.

03/07/1998      In the Line of Duty

Carter is possessed by a Goa'uld who is discovered. The Goa'uld claims to be a Tok'ra, a legendary faction opposed to the other Goa'uld system lords. The Tok'ra Jolinar is assassinated but in dying saves the life of Samantha Carter.

10/07/1998      Prisoners

After being sentenced to life imprisonment on another planet, SG-1 escapes with the help of a female inmate named Linnea. After they set her free, they discover she is a mass-murderer known as 'the Destroyer of Worlds'.

17/07/1998      The Gamekeeper

SG-1 discover a world where all the people are enclosed in a virtual reality, believing that their planet is dead. SG-1 become trapped in the virtual reality, but inform the residents that their planet is beautiful again, and they all go free.

24/07/1998      Need

Offworld, Daniel stops a woman from killing herself; she falls in love with him and uses the narcotic properties of the Sarcophagus to keep him with her, but once home he is rehabilitated and eventually let back into SG-1

31/07/1998      Thor's Chariot

SG-1 return to Cimmeria to help defend the planet when the Goa'uld invade. They contact Thor who shows himself as an Asgard. He is annoyed with SG-1's interference but comes via ship and eliminates the invasion nevertheless.

07/08/1998      Message in a Bottle

SG-1 bring back a mysterious sphere which suddenly sprouts rods that impale O'Neill. After attempts to remove it, SG-1 discover it contains the last of an alien race, who are pacified by relocation to a more suitable home than Earth.

14/08/1998      Family

Bra'tac brings word that Apophis has kidnapped Teal'c's son Rya'c. Returning to Chulak with SG-1, Teal'c finds that his son is brainwashed loyal to Apophis. They resort at last to a zat-blast on him to overcome the brainwashing chemical.

21/08/1998      Secrets

Having to fulfill a promise to Sha're's father Kasuf, Daniel and Teal'c return to Abydos. Upon their arrival, Daniel learns that his wife, after having been captured by the Goa'uld, is now pregnant by Apophis. on earth, the Stargate Program is under risk of being exposed by a reporter.

25/09/1998      Bane

Teal'c is stung by a strange insect while exploring BP6-3Q1. Upon returning to earth, the virus begins changing Teal'c's DNA into its own. He escapes the SGC and develops a friendship with a small scruffy girl, and is ultimately cured.

02/10/1998      The Tok'ra (Part 1)

Jolinar has left a mental imprint on Carter, who dreams of the Stargate address of the hidden Tok'ra base. While SG-1 find and liaise with the Tok'ra, Carter's father Jacob is dying of cancer.

09/10/1998      The Tok'ra (Part 2)

SG-1 offers an alliance with the Tok'ra, but it is turned down because Earth doesn't have enough to offer. Meanwhile, Selmak is a Tok'ra whose host is dying and the alliance deal is re-kindled when Jacob offers himself as a new host.

23/10/1998      Spirits

SG-1 discovers a civilization that follows a Native American religion, and after learning of the SGC's plot to mine trinium, the religion's 'spirits' invade the base. They are revealed as aliens only posing as spirits.

30/10/1998      Touchstone

A planet called Madrona accuses SG-1 of stealing 'the Touchstone'; they claim that men dressed in SGC uniforms took it. SG-1 suspect that maybe the thieves are using the second gate found in Antarctica.

22/01/1999      The Fifth Race

Jack is grabbed by a Repository of the Ancients, and has alien knowledge downloaded into his mind. Before Jack's mind is overrun, he discovers a gate address to the Asgard homeworld, who remove the information from his brain, saving his life.

29/01/1999      A Matter of Time

SG-10 stranded on a planet which is close to a newly formed black hole. The SGC opens the gate to find out what happened, but they can't shut it down afterwards. Soon they realise that since the planet is near to a black hole, its intense gravity is causing time dilation, so if they don't shut down the gate very soon, it will destroy the SGC, and in time, the entire Earth.

05/02/1999      Holiday

SG-1 meets an elderly man called Ma'chello who was hunted by the Goa'uld as he invented many Goa'uld-destroying weapons. Daniel and Ma'chello both grasp a device and switch bodies; eventually Ma'chello agrees to switch back, and dies.

12/02/1999      Serpent's Song

Apophis is found, dying, and is brought to the SGC. Sokar tries to attack Earth as he wants him, but is stopped when they hand over the dead Apophis. However, Sokar will use a sarcophagus to revive him and torture him indefinitely.

19/02/1999      One False Step

After a UAV crashes into a large white plant offworld, SG-1 encounters strange inhabitants who appear to be dying en mass. SG-1 discover that the aliens depend on the large plants for survival, and rectify the situation.

26/02/1999      Show and Tell

A young boy warns SGC of a plot by invisible aliens to destroy all humans. They decide his warning is real, and call the Tok'ra for help, who provide TER's that locate the Re'tus already hiding on the base, and eliminate them.

05/03/1999      1969

A solar flare sends SG-1 back in time. They meet a young General Hammond, who helps them due to a note ("Help them", plus dates of solar flares). They find the Stargate of 1969 and activate it during another solar flare, returning home.

12/03/1999      Out of Mind

O'Neill, Carter and Daniel awaken from stasis in what appears to be the SGC, 80 years in the future. They discover it is actually a Goa'uld hoax by Hathor. Meanwhile, Teal'c leaves the SGC to find SG-1.