Chain Reaction (S04E15)

When Gen. Hammond announces he is stepping down as head of Stargate Command, Col. Jack O'Neill suspects that there is more to Hammond's decision than he is letting on. O'Neill is right; as he discovers, the National Intelligence Department (NID) — the quasi-governmental agency that, among other things, runs the classified Area 51 alien-research facility — was behind the change of command. Fed up with the general's inability to acquire alien technology through whatever means necessary, it pressured him into resigning. When Hammond's replacement, the hawkish Gen. Bauer, breaks up SG-1 and assigns Maj. Samantha Carter the task of building a planet-killing Naquadah bomb, O'Neill decides to take on the NID. However, O'Neill's only hope of restoring Stargate Command to its proper condition rests in the hands of a most unlikely ally: the traitorous Col. Maybourne. (Metro-Goldwyn-Mayer (MGM))