Martouf comes to earth with some bad news for Carter: her father has been captured by Sokar and is being held prisoner on Netu, a moon specifically designed to resemble the Christian hell; further, he claims that the only person to ever escape from Netu was Jolinar, and he believes the details of her escape may be buried in Carter's subconscious. The team join Martouf for a rescue operation, but things quickly go wrong when all of them save Teal'c find themselves imprisoned alongside Jacob.
"Jolinar's Memories" provides examples of the following tropes:
- Back from the Dead: Apophis, as revealed in the final two minutes of the episode.
- Bald of Evil: Both Sokar and Bynarr.
- Call-Back: Carter and Martouf attempt to find out the secret of Jolinar's escape by using the same memory recall device used by Hathor in "Out of Mind".
- Cliffhanger: The episode ends with O'Neill, Carter, Daniel, Jacob and Martouf stranded on a prison moon at the mercy of Apophis, who it turns out is not quite as dead as they believed.
- Cold-Blooded Torture: Carter has a flashback of Jolinar being tortured by Sokar, and Martouf outright states that this is what will have happened to Jacob/Selmak.
- Convection, Schmonvection: The heroes come within about ten feet of a lava flow at one point and don't seem to suffer any ill effects.
- The Dragon: Bynarr acts as this for Sokar, ruling over Netu in his stead while Sokar prepares to attack the system lords.
- Dramatic Unmask: When "Naonak" takes off his helmet at the end and reveals his true identity. As this is Apophis, it's done with about as much melodrama as one might expect.
- Drop Pod: Teal'c sends the rest of the team plus Martouf down to the surface of the moon in escape pods to avoid raising suspicion. It doesn't look like a particularly pleasant ride, since each pod is about the same size as a coffin.
- Facial Horror: Since we saw him last, Apophis has had one side of his face burned off and replaced with some kind of metal plating.
- Fire and Brimstone Hell: Netu has been deliberately terraformed (infernoformed?) to resemble this interpretation of Hell, complete with active volcanoes, lava flows, and underground chambers lit by burning torches.
- Flashback: Carter has several flashbacks to Jolinar's time on Netu. We also see a brief flashback to a traumatic event from Carter's childhood as she's adjusting to the memory device.
- From Bad to Worse: The episode starts with the team planning a rescue mission to a literal Hell; from there, they end up getting themselves imprisoned and find that Jacob is on the brink of death, and then their escape plan fails and they find themselves at the mercy of their arch-nemesis Apophis, who turns out to be very much alive.
- Good Scars, Evil Scars: Bynarr is missing his left eye and has a large amount of ugly scar tissue in its place. He claims that this was punishment from Sokar for allowing Jolinar to escape.
- Hell Is That Noise: All of the scenes on Netu come with a background track of damned souls screaming and sobbing as they're tortured.
- Hellhole Prison: Netu takes this trope to its logical extreme, as a moon that has been purposefully terraformed to match Christian descriptions of Hell, where prisoners of Sokar are sent to be tortured with no hope of escape.
- Honey Trap: A flashback reveals that Jolinar pulled a heroic version of this, seducing Bynarr in order to steal his key to the transportation rings that would allow her to make her escape.
- Inertial Dampening: Martouf "reassures" the others that the drop pods come equipped with inertial dampeners when they express doubts about using them.
- Layman's Terms: O'Neill demands that Martouf keep things simple when he launches into a convoluted explanation of how Teal'c can intercept the matter stream of the ring transporters with the cargo ship.
- Missing Mom: A flashback reveals that something happened to Carter's mother when she was a teenager.
- Mission Control: Teal'c acts as this, staying in orbit on the cargo ship and relaying messages to the others through a communications device, as the ship only has four escape pods.
- Neuro-Vault: Martouf believes that the secrets of Jolinar's escape are buried somewhere in Carter's subconscious as a result of her time as a host. He's right, although it takes her some time to remember the relevant information.
- No One Gets Left Behind: Jacob asks the others to leave him as he's on the verge of death anyway and they'd have a much better chance of escaping on their own. O'Neill responds that he seems to be missing that rescuing him was the whole point of the mission.
- Not Named in Opening Credits: Peter Williams was kept out of the opening "guest stars" list to keep his return as Apophis a surprise for the last scene.
- Oh, Crap!: Everyone gets one at the end, when Apophis reveals himself.
- Rescue Arc: The plot is kickstarted by Martouf bringing news of Jacob's capture and SG-1 volunteering for the rescue mission.
- Sarcastic Confession: When the guards "catch" Daniel using the communications device (actually part of a plan for the others to ambush the guards and escape):Guard: What are you doing?Daniel: Oh, you know, just talking to my friend on this communication device.
- Ship Tease: Between Carter and Martouf. One of the memories she recalls from Jolinar is of a romantic evening the two of them shared, and Martouf asks her not to try and spare his feelings by holding back any of the details about Jolinar's escape.
- Thwarted Escape: The group almost makes it up to the surface, and are actually standing on the ring platform when Apophis and his goons break down the door.
- Trojan Prisoner: Martouf insists that to attempt full-on military incursion against Sokar would be useless, so the only way to rescue Jacob is by infiltrating Netu and acting like they've been sent there as prisoners.
- To Hell and Back: The entire point of the episode, as well as the following one. Predictably, O'Neill is fond of lampshading this.O'Neill: To hell with us!
- Villainous Rescue: "Naonak" kills Bynarr just as the latter is about to torture Carter to death with the hand device. Presumably, Apophis wants her for himself.
- Wham Line: Combined with Wham Shot as "Naonak" removes his helmet before the captured team.Naonak: You shall call me Naonak no longer. From this day forth, I will reclaim my real name...Apophis.
