|Original air date|
|SG-1 Season 2|
|Season 1||Season 3|
While trying to find the Tok'ra, SG-1 witnesses the crash of a Death Glider piloted by their sworn enemy, Apophis. After demanding sanctuary from the Tau'ri, they take him back to Earth. Due to his injuries as well as the pain and suffering he caused others, the team finds it difficult to save his life. Worse, an enemy named Sokar demands Apophis from them and with the SGC under threat, SG-1 must give into Sokar's demands or face destruction.
Stargate Command receives a set of coordinates which they believe originated from the Tok'ra. They soon send SG-1 to the world when suddenly, a Goa'uld Death Glider screeches overhead and crashes nearby. They investigate the crash site and find their long time adversary, Apophis, extremely wounded and begging for help. Knowing he will soon die, the former System Lord asks SG-1 "for sanctuary," and the team reluctantly brings him to Earth. When Dr. Janet Fraiser insists that Apophis be rushed to the Operating Room if he is to live, Captain Samantha Carter concludes that he was tortured with a Hara'kesh, the same hand device that was used to kill Jolinar of Malkshur.
With such a valuable source of information, Stargate Command calls the Tok'ra (who send Martouf) and then waste no time interrogating Apophis. In desperation, he asks for a new host, but Colonel Jack O'Neill quickly tells him to "go to hell". Apophis then reveals that he was defeated by a powerful Goa'uld named Sokar, who is an old and extremely powerful Goa'uld and who once lived on Earth where he posed as Satan. Because of this Martouf and Lantash try to persuade SG-1 and Major General George S. Hammond to send Apophis back to Sokar but Hammond refuses.
Soon after, the Stargate activates with Sokar on the other end, who demands his prisoner be returned to him. However, just as the SGC dismisses his demand, Sokar fires a particle accelerator through the gate, heating the Iris to dangerous levels. The SGC resorts to spraying the iris with liquid nitrogen, but its effect is minimal.
Dr. Daniel Jackson suggests dialing out between attacks, exploiting the 38-minute window, the time a Stargate can stay open without additional energy (used in the episode "There But for the Grace of God" for the same purpose).
Over the time every member of SG-1 talks with Apophis. Daniel asks him for his wife Sha're and also reveals to him that it was Daniel, not Heru'ur, who stole the child of Apophis and Amaunet. Teal'c happily watches his former master experience pain (he even stops Fraiser when she wants to help him) and tells him that one day all Jaffa will be free. To end Sokar's attack, it is decided to allow Apophis to die and return him to the planet where he was found. Rapidly aging and weakening, Apophis can no longer control the host body, and Apophis' host emerges and Daniel speaks with him before his death. Daniel gives him an Egyptian funeral that the host would've normally received.
Sam creates a new rapid dialing program that establishes a wormhole before Sokar can attack a third time. Once the wormhole is open, the corpse is passed through the gate, and Sokar is apparently satisfied. Martouf reveals that Sokar will surely revive Apophis with a Sarcophagus to torture him as long as he wants.
In return, Jack gives them a GDO for future contact.
Abydos; Amaunet; Ancient Egyptian; Apophis' host; Book of the Dead; Bra'tac; Jacob Carter; Chulak; Death Glider; Dialing computer; Egypt; Garage Door Opener; Hara'kesh; Ha'tak; Heru'ur; Inverted phase communicator; Iris; Jolinar of Malkshur; Joint Chiefs of Staff; Karnak; Liquid nitrogen; Memphis; Morphine; MRI; Nox; Particle accelerator; PB5-926; President of the United States; Ra; Carl Sagan; Sagan Institute Box; Sarcophagus; Sha're; Shabti statue; Shark; Shol'va; Sokar; Sokar's attack on Earth; Stargate Command infirmary; System Lords; Temple of Amun; Titanium; Tok'ra; Tok'ra High Council; Tollan; Trinium; Tuat; Unas; Zat'nik'tel
O'Neill: General Hammond, Apophis. Apophis, General Hammond.
Hammond: We've met.
Apophis: I demand Kal Mah!
Jackson: I'm not really sure, but I think what he's asking for is…
O'Neill: I think some rival Goa'uld just kicked his ass.
Carter: There were several other death gliders in pursuit when we took him prisoner, sir.
Apophis: I demand Kal Mah!
Hammond: You're not in a position to demand anything, sir. Lock him up.
O'Neill: I say we beat whatever information we can out of old snake boy, and pen that Gate and toss him back to the sharks.
Hammond: Not so fast, Colonel. He's essentially a prisoner of war. That gives him certain rights.
Apophis: O'Neill. I am dying.
O'Neill: My heart bleeds for you.
Apophis: You lie poorly.
O'Neill: What do you want?
Apophis: To live.
O'Neill: Can't help you there. That's between you and your god. Oh, wait a minute. You are your god. That's a problem.
Jackson: Basically he was the original Satan.
O'Neill: Well. Isn't that special. (overhead: Incoming traveler) Speak of the Devil.
Lantesh: We cannot defend you from the Goau'ld. You cannot expect us to.
O'Neill: We don't.
Lantesh: Overconfidence was their failing, O'Neill. I hope it has not also become yours.
Teal'c: The people of Chulak no longer worship you. They no longer fear you. The time of Apophis has come to an end.
Apophis: Then kill me now!
Apophis: There was a time when you would die for me, Teal'c.
Teal'c: That time is no more.
Apophis: Help me.
Apophis: A host.
Apophis: I am afraid.
- This episode features an unusual visual effect: The camera and digital image pan backward through the Stargate, presenting Colonel Jack O'Neill's visual perspective as he passes backwards through the gate.
- When Dr. Daniel Jackson describes Sokar as the original "Satan," Jack responds, "Well isn't that special?" - both of which were catchphrases of Dana Carvey's "Church Lady" character from Saturday Night Live.
- When Apophis and Major General George S. Hammond are introduced to one another, Hammond responds "we've met." This is reference to the very first episode "Children of the Gods" when Hammond and Apophis stare at each other when Apophis invades Cheyenne Mountain. This is the second of only three times that Don S. Davis and Peter Williams share a scene in the series' history. They would later do so again in "Point of View".
- It is implied that Apophis uses an Iris of some sort, since Sokar used the same weapon against Apophis.
- Sokar's image in the Stargate resembled an Unas, meaning he either was still in possession of an Unas host, or was distorting his human host's image to resemble an Unas. However, when he later appears in "Jolinar's Memories" and "The Devil You Know", he is shown in a human host and has been in one since before this episode as he was in the same host when he had Jolinar of Malkshur tortured.
- This is the first of seventy-eight episodes of Stargate SG-1, Stargate: Atlantis and Stargate Universe directed by Peter DeLuise. He is best known for playing Doug Penhall on 21 Jump Street.
- Despite Apophis's death here, he returns in "Jolinar's Memories" having been resurrected with a sarcophagus as Martouf predicted. After SG-1 and the Tok'ra killed Sokar during the Battle of Netu, he regained power by taking control of Sokar's forces and became one of the most powerful System Lords until his final death in "Enemies."
- This is one of the very few episodes where Jack calls Carter by her first name instead of her surname or rank.
- The image from the vital signs monitor beside Apophis show's in the top: "Patient: Apophis", and in the bottom: "Patient: Carter Jacobs". It's surely a reused image from episode "The Tok'ra, Part 2".
- Just after Martouf asks Dr. Janet Frasier what she was injecting Apophis with, we see her take off her left glove. The shot immediately changes, and we see her take off her left glove again.
- French : La Colère des Dieux (The Gods' Wrath)
- German: Der Sturz des Sonnengottes (The Fall of the Sun God)
- Italian: Il Canto del Serpente (The Serpent's Song)
- Spanish: El Canto de la Serpiente (The Serpent's Song)
- Czech: Hadova píseň (Serpent's Song)
- Hungarian: Kockázatos játékok (Hazardous Games)
- Russian: Лебединая песнь змеи (The Serpent's Song)