Thor’s ship slams into the Pacific Ocean in pieces, but some of the replicators survive the ship’s re-entry. One replicator tries to single-handedly commandeer a Russian submarine, but the sub makes it back to harbor. SG-1, after two weeks missing in action, finally returns home from delivering Thor back to the Asgard. But despite O’Neill’s wish for a hot shower and a fishing trip, the team gets new assignments almost immediately. Thor asks for the team’s help in the Asgard’s ongoing war with the replicators, and Carter goes to offer her expertise. The rest of SG-1 boards the Russian sub, discovering that the replicator has made copies of itself, which are now making copies of themselves – but after their first firefight with the replicators, Daniel detects a defect: the new replicators, created from the raw material available in the submarine, are susceptible to Earth’s corrosive seawater. But the information may not be enough to save O’Neill and Teal’c’s lives.
Season 4 Regular Cast: Richard Dean Anderson (Colonel Jack O’Neill), Michael Shanks (Dr. Daniel Jackson), Amanda Tapping (Major Samantha Carter), Christopher Judge (Teal’c), Don S. Davis (General Hammond)
written by Robert C. Cooper
directed by Martin Wood
music by Joel Goldsmith
main theme adapted from music by David Arnold
Guest Cast: Colin Cunningham (Major Davis), Gary Jones (Sgt. Walter Harriman), Teryl Rothery (Dr. Fraiser), Dan Shea (Sgt. Siler), Yurij Kis (Yuri), Dmitry Chepovetsky (Boris)
Notes: This episode offers the first-ever glimpse of the Asgard homeworld, as well as their new command cruiser, the O’Neill, to say nothing of Teal’c’s new “soul patch” beard grown by Christopher Judge during the between-season break in filming. Some of Joel Goldsmith‘s music is reminiscent of the themes he and his father Jerry composed for another SF enemy that won’t consider you a threat unless you threaten it first: Star Trek: First Contact‘s Borg.
LogBook entry by Earl Green