When Teal'c and Colonel Jack O'Neill were scooped up by Thor's Hammer, she helped Captain Samantha Carter and Dr. Daniel Jackson find Kendra to take them to the Labyrinth. Gairwyn was helpful to the pair and was somewhat excited to interact with visitors from Midgard, the old world. Gairwyn was present at the destruction of Thor's Hammer, which she agreed was necessary to free Teal'c. SG-1 later gave her and Kendra a Sagan Institute Box to contact the SGC should they ever need their help.(SG1: "Thor's Hammer")