Stargate SG-1 (1997)

S1E3 The Enemy Within

Title: The Hidden Threat Plot: Major Kawalsky has been taken over by a Goa'uld, posing a dire challenge for the SGC. The team races against time to devise a method to extract the alien entity while ensuring Kawalsky's survival. As they explore various options, tensions rise, and the stakes become higher than ever, pushing their skills and camaraderie to the limit in a desperate bid to save a friend from an insidious force.