In a special ten-part series, Beth Johnson and Franck Marchis from the SETI Institute discuss the best episode from each season of Stargate SG-1, as chosen by the fans at GateWorld (https://www.gateworld.net/​​). From season four, episode six: "Window of Opportunity."

WARNING: This video is full of spoilers. And science. But also spoilers. And spider-like creatures. You have definitely been warned.