As the holographic image of the Goa'uld system lord Anubis fades away, Stargate Command has only 54 hours before the energy that Anubis is feeding through the wormhole overloads the stargate and destroys Earth.

Maj. Carter is out of ideas, but her cocky Pentagon counterpart, Dr. Rodney McKay, has one: Send an electromagnetic pulse through the wormhole and knock out whatever is on the other end. Carter deems McKay's plan "problematic," because that would increase the flow of energy into the stargate by a factor of ten, cutting in half what little time Earth has left.

Gen. Hammond approves McKay's plan and gives Carter four hours — the same amount of time it would take to set up the EMP generator — to come up with a better one.

On the other side of the universe, Teal'c and his son Rya'c, their differences mended, fly with Shaq'rel and Bra'tac through hyperspace toward the one planet, besides Earth, that has had a stargate continuously busy. There, Teal'c and Bra'tac discover the Goa'uld are using a huge cannon of ancient, alien design to fire energy blasts into that stargate.

Teal'c, Bra'tac and Rya'c set off on foot and are attacked by Jaffa warriors loyal to Anubis. Rya'c is wounded and, though his symbiote is healing him, Teal'c orders him to remain behind. Teal'c and Bra'tac are captured by the Jaffa guard.

When the attempt to knock out the weapon by firing an EM pulse through the SGC stargate fails, Jonas Quinn asks Carter how the stargate first got down into Stargate Command. This gives Carter the idea to lift the stargate out, through the ceiling and secret tunnel in SGC, and launch it into space, where it can explode safely away from Earth.

The stargate is attached to the underbelly of the X-302 experimental spacecraft, which is then secured to a 747 aircraft that will assist it out of Earth's atmosphere. Col. Jack O'Neill will then jettison the stargate into deep space.

After some complications, O'Neill activates the ship's hyperspace generator, zaps the stargate into hyperspace and ejects from the X-302, which is now in a free fall. Back on the weapon planet, Rya'c steals a Goa'uld glider, saves Teal'c and Bra'tac, and destroys Anubis' cannon.

With no stargate at SGC, Gen. Hammond has no choice but to make a deal to import the Russians' stargate. In exchange, the Russians ask that one of their team-members join SG-1. Col. O'Neill suggests instead that the Russians add their own, full team to Stargate Command's roster, because he has already picked Dr. Daniel Jackson's replacement for SG-1 — Jonas Quinn, whose observations during this affair helped save Earth.

TONY AMENDOLA	......	Bra'tac
GARY JONES	......	Technician
NEIL DENIS	......	Rya'c
CHRISTOPHER KENNEDY	......	Murphy
DAVID HEWLETT	......	Dr. Rodney McKay
GARRY CHALK	......	Col. Chekhov
ALEKS PAUNOVIC	......	Shaq'rel
DAVID PALFFY	......	Anubis
DAN SHEA	......	Iler
TOBIAS MEHLER	......	Lt. Simmons
CRAIG McNAIR	......	Technician 3
GRIZZ SALZL	......	Jaffa
MICHAEL SOLTIS	......	Medic
ROBERT CLARKE ROBERT THURSTON	......	Scientists
IVAN CERMAK	......	Hagman
DALE HALL	......	Jaffa Commander
Written by	......	Robert C. Cooper
Director	......	Martin Wood