S9, E16: While investigating an addictive substance called kassa that's being sold around the galaxy SG-1 visits P6G-452 an agrarian planet where poor farmers grow the corn-like crop. There Mitchell arranges a meeting with Worrel an unscrupulous kassa supplier for the shady Lucian Alliance. As Daniel Carter and Teal'c look on from hiding Mitchell tries to pose as an interested buyer but Worrel's not buying his story. Moments later SG-1 is racing to the stargate pursued by Worrel's gang of thugs. As they reach the 'gate it suddenly vanishes apparently beamed away. SG-1 would love to find out who stole their only escape route but they can't because Worrel wastes no time taking them prisoner. He's proud to have captured the famous SG-1. Unfortunately he also believes they're responsible for the stargate's disappearance so he sets out to torture them into returning it. When they point out the obvious fact that his theory makes no sense he only becomes more brutal. Meanwhile after discovering that P6G-452's stargate is inactive Gen. Landry dispatches Earth's newest interstellar battleship the Odyssey to investigate SG-1's disappearance. Soon afterwards he learns that at least four stargates have been stolen throughout the galaxy. Already suspecting the mastermind behind this audacious crime Landry travels to Area 51 to question Nerus the gluttonous Goa'uld prisoner who once worked for the system lord Ba'al. Just as Worrel orders his men to kill SG-1 the Odyssey beams the team to safety. Although they're exhausted the ship's commander Col. Emerson briefs them on the urgent problem of the stargate thefts. Back on Earth Nerus confirms Landry's theory that Ba'al is responsible for the crime probably in an attempt to build himself a secret empire complete with his own private 'gate system. In exchange for this intelligence Landry gives Nerus his freedom - after secretly tagging him with a tracking device.