Adrift in a space suit, her oxygen running low, Carter watches the Ori warships rip the Milky Way's fleet to shreds. Both the Odyssey and the Lucian Alliance mothership are nearly destroyed, and the Korolev — carrying Mitchell and Daniel — explodes. Then the invaders head deeper into the galaxy, heedless of the carnage they've left behind.

Carter radios Mitchell, who has escaped the Korolev in an F-302. From the Odyssey, Col. Emerson responds as well. But Daniel is missing, and Teal'c makes only brief contact from the Lucian Alliance ship before he's attacked and imprisoned by Netan, the leader of the Alliance, who demands revenge for the beating his people have just endured.

The Odyssey's beaming technology is damaged, so they can't rescue Teal'c, but Mitchell pilots the huge ship in a risky maneuver to pick up Carter. Next, Teal'c's mentor, Bra'tac, arrives with three Jaffa motherships. Now outnumbered, Netan gives up his pointless quest for revenge and prepares to flee. With Carter's help, the Asgard Kvasir repairs the Odyssey's beaming technology just in time to rescue Teal'c before the Alliance ships zoom away. But this triumph is forgotten when word comes that the Ori fleet is attacking the planet Chulak. Accompanied by Carter and Mitchell, Teal'c and Bra'tac depart immediately to join the defense of their homeworld.

Meanwhile, Daniel hides in the enemy's stronghold, having used the Korolev's rings to escape its explosion — by transporting himself to the Ori flagship. There, he dodges legions of enemy soldiers and seeks out Vala, who has just given birth to her daughter, Adria. To Daniel and Vala's horror, however, Adria is not a normal baby. For one thing, she is growing unnaturally fast — she's nearly a young woman. For another, the Ori have given her their supernatural power and knowledge. She is, essentially, an Ori in human form, dedicated to conquering all unbelievers. Adria's followers — including Vala's husband, Tomin — already worship her.

As the Ori flagship lands on Chulak, Vala and Daniel decide they must subdue and abduct Adria. Then Daniel hears a radio message from Carter, who has arrived in orbit with Mitchell, Teal'c, Bra'tac and the three Jaffa ships. SG-1's relief at being reunited is sincere but brief. All too soon, the Ori ships unleash their tremendous arsenal upon the new arrivals, while on the planet's surface, Daniel and Vala discover that Adria and Tomin have the advantage and are bent on capturing them.

TONY AMENDOLA	......	Bra'Tac
MATT GLAVE	......	Col. Emerson
ROBERT PICARDO	......	Richard Woolsey
ERIC STEINBERG	......	Netan
MARTIN CHRISTOPHER	......	Maj. Marks
GARRY CHALK	......	Chekov
TIM GUINEE	......	Tomin
EMMA COOPER	......	Adria (4 Years Old)
JODELLE FERLAND	......	Adria (7 Years Old)
BRENNA O'BRIEN	......	Adria (12 Years Old)
BRUNO VERDONI	......	Lucian Alliance Officer
GWENDA LORENZETTI	......	Nursemaid
APOLLONIA VANOVA	......	Russian Weapons Officer
DOUG ABRAHAMS	......	Prior
GARY JONES	......	Chief Sgt. Walter Harriman
MORRIS CHAPDELAINE PAUL HOOSON JENY CASSADY NICHOLAS PODBERY	......	Vasir (Puppeteers)
Written by	......	Robert C. Cooper
Director	......	Will Waring