Apophis' attack on Earth

Apophis' attack of Earth was a battle between the forces of the System Lord Apophis and the Stargate Command on Earth that occurred in 1998. After continued skirmishes between the Goa'uld and the Tau'ri, Apophis and his son Klorel, took two Ha'taks in a campaign to conquer Earth.

Prelude
"Senator, we have reason to believe that the Goa'uld are about to launch an attack, in force, in ships."

- Daniel Jackson

On a mission to P3R-233, Daniel Jackson discovered the Quantum Mirror and was transported to an alternate reality, where Earth was about to be overrun by a Goa'uld invasion force, led by Apophis. Daniel discovered that his reality faced the exact same threat - an invasion coming in retaliation for the death of Ra - and asks the alternate versions of several of his friends to help him return to save his own world. Just before the alternate Stargate Command was destroyed, Daniel escaped into his reality. Afterwards the mirror is transported to Earth and stored in Area 51.

Shortly afterwards Senator Kinsey successfully shuts down the Stargate Command, considering it a 'colossal waste of money.' Even Jackson's assertion that the Goa'uld are about to attack Earth had no effect on Kinsey, who insisted that 'God' will protect America and that the Goa'uld will be no match for the US military.

The Battle
"We're on an attack ship headed to Earth."

- Daniel Jackson

Knowing that the slaughter that took place in the alternate reality could happen in this reality, Daniel convinced his team members to violate orders. They then armed themselves, activated the Stargate, and traveled to the home of the destroyers.

They found themselves in a large room and, at first, don't know on which planet they are. Exploring the room, they found then unknown type of Goa'uld small hand weapon named Zat'nik'tel, which they took with them. Suddenly there was a strong movement and all the members of the team (except Teal'c) were thrown back. Hidden doors opened and SG-1 hid as Jaffa marched in. They bow before the Stargate as a large ball rises into the center of it. The Jaffa left. Teal'c explained that the ball is a Goa'uld long range visual communication device. They soon discovered that they had gated, not to a planet, but to a Goa'uld mothership which was in orbit of a planet (thus making a dialing possible). It launched into hyperspace towards Earth after their arrival, cutting off escape. SG-1 hid in the Death Glider bay and realizes they are on an attack ship headed to Earth. They also noticed that the Jaffa are heading to a gathering. Sneaking back into the cargo room, they watched a large meeting in which they overheard Apophis unveil his son, Klorel (which had taken Skaara as his host), the leader of this ship until Apophis rejoins them. O'Neill ordered Carter and Daniel to plant C-4s all over the ship while he and Teal'c were to grab Klorel, in the hope that Skaara can fight the Goa'uld within him.

They captured Klorel, but Skaara was able to assert control only briefly after one painful shot from a Zat'nik'tel. He apologized to O'Neill since he felt responsible for Klorel's doings, but then the Goa'uld took back the control. When guards entered they surrendered rather than to kill Klorel, who then brought the two into the cargo room and contacted his father. Apophis was pleased, and ordered Teal'c's and O'Neill's immediate execution. When asked if there were any other Tau'ri aboard the ship, Klorel made a typical Goa'uld mistake of overconfidence, declaring "I assure you, father. There could be no more." Skaara seemingly exerted some influence, as Klorel disobeyed his father's orders and delayed their execution, bringing them to the Pel'tak to witness the destruction of Earth. Carter sets a timer on the bombs, and she and Daniel try to free their friends. They successfully took out the guards, but then Klorel grabbed Daniel, knocked the gun out of his hands, and used his hand device to try to kill Daniel. When Klorel didn't stop, O'Neill was forced to kill Klorel/Skaara.

Looking through the window, they saw Earth while the Death Gliders prepares for launch.

Carter prepared herself to detonate the C-4s to end the attempted invasion, sacrificing the lives of SG-1 in the process. But as they prepare, another Goa'uld mothership slides into view. Teal'c identified it as Apophis' Ha'tak, and notes that it has defense shields and won't be sufficiently damaged by the destruction of Klorel's ship. Destroying the ship they were on would no longer guarantee that the invasion would be stopped. Jaffa broke into the room and threw a shock grenade, disabling and capturing SG-1.

On Earth Area 51 has created two "Goa'uld-busters", missiles with stealth Mark 12-A warheads enhanced with the Stargate element, Naquadah. Curiously, the Goa'uld ships have delayed entering orbit, giving the United States the necessary time to prepare.

Bra'tac, believed to be a part of Klorel's loyal Jaffa is put in command of killing SG-1, informs them that he engineered the Goa'uld's delay by placing Klorel in a sarcophagus. He knew Apophis would wait until Klorel arose, hopefully giving Earth's warships time to attack. He originally planned to lead his fighter wing against Apophis in Klorel's name, leading father and son to attack each other's ships in the heat of battle. However, being aware of the humans onboard, they will now bond against their common enemy. O'Neill thought they needed a new plan.

Meanwhile, two Goa'uld-buster warheads were launched to destroy the two orbiting Ha'tak motherships, however, they failed to penetrate the protective energy shields on the ships. Bra'tac and SG-1 fought their way to Klorel's command center without raising an alarm, Bra'tac quietly dispatched all the Jaffa guards on the way. On the bridge, Klorel is captured and Bra'tac directs the ship closer to Apophis', but one of the guards seriously wounds Daniel. Daniel ordered Jack to leave him. "You're just gonna blow up with the other ship anyway! What difference does it make? Go! Just go! I'll stay and watch your back."

The rest transported themselves over to Apophis' ship. With Klorel as a temporary hostage, Bra'tac destroyed Apophis' steering console. O'Neill then drops two grenades into the core of the ship, destroying the shield generators so both ships will be destroyed when the C-4s explodes. Bra'tac is impressed and prepares himself to die. O'Neill overrides that plan, and directs the team to the glider bays. Overcoming the guards in the glider bay, two gliders, with one human and rebel Jaffa each, launch.

Apophis and Klorel, unable to control either ship, escaped through the rings and the Stargate.

Daniel wakes up in a sarcophagus, having crawled into one to heal his injuries. With seconds to go, he dialed the Alpha Site and escapes. Both ships collide and explode.

The gliders have escaped but are heavily damaged from the proximity. They share a quiet moment, reflecting on the beauty of Earth. The shuttle Endeavour, which Hammond had prepped for launch to rescue SG-1 on the very small chance that the flash of light witnessed on one of the Goa'uld ships (from the first shock grenade) was SG-1 sabotaging the ship. When Daniel arrives and confirms SG-1 was in those ships, Hammond had the shuttle launched. Bra'tac and SG-1 were then shortly returned to Earth as heroes.

Aftermath
"You know, Captain—this wasn't such a bad day after all."

- Jack O'Neill

After the battle Stargate Command was restarted. Because of the loss of two Ha'taks and most of his Serpent Guards, Apophis' standing among the System Lords was considerably weakened, but his vindictiveness for the Tau'ri had only grown.