Grace (Stargate SG-1)

During the attack Major Samantha Carter (Amanda Tapping) is knocked unconscious and awakens to find the ships crew are missing and the Prometheus is stuck in a gas cloud.

Unable to use the hyperdrive, Major Samantha Carter (Amanda Tapping) suggests they retreat into a gas cloud with the hope it will make it more difficult for the alien vessel to track them.

Suffering from head injury, Carter struggles to stay conscious and soon begins having visions of a little girl (Sasha Pieterse) running around the ship blowing bubbles.

As Carter gives up on finding a solution to leave the cloud, she conjures up the image of Jack O'Neill (Richard Dean Anderson) and confronts him about her feelings.

The small girl continues to blow bubbles, giving Carter the idea to partially engage the hyperdrive and take Prometheus out of the cloud's space-time.

[3] Cooper told Tapping they had already begun developing something in that vein, commenting that he tended to rely upon Carter's voice for technobabble and exposition admitting "we sometimes lose track of the fact that she's also a woman, who has a life, and we wanted to explore that too".

[4][3] The episode continued what Kindler described as a "kind of a mini agenda coming into season seven" where he "really wanted to write some good Carter stories".

The first idea came to Kindler in a dream, in which he imagined "Carter trapped on a planet in a decaying orbit" and "having to deal with this very personal and emotional gauntlet if she hopes to survive".

[7] Kindler described the story as a "closed-door mystery" where "You never really find out what happened in the epic sense", intending that the episode remain focused around Carter.

Kindler described wanting to address but not conclude "what that has been doing to her for seven years", whilst also expressing his desire to "stir the pot" of the fans who ship Carter & O'Neill romantically.

Tapping believed who or what the character was purposely left open for interpretation, however she personally Grace as "Sam's child if she had chosen family over career" as well as "the potential future for Carter".

John Novak and Ingrid Kavelaars reprise their roles of Major Erin Gant and Colonel William Ronson from the episode "Memento".

[18] According to Tapping Richard Dean Anderson, Christopher Judge and Michael Shanks all played "somewhat different" versions of their characters; Jack O'Neill, Teal'c and Daniel Jackson in Carters hallucinations.

Snow also praised how Kindler appeared to flirt with Star Trek tropes such as "sentient space anomaly" and "alien mind trick" "then veers back into an original and satisfying story".