The Tranq Gas gang pump knock-out gas through the system that feeds air to Luna-1. With the citizenry unconscious, they then go on a crime spree. As Judges struggle to cope the gang get away clean. 53,000 die in the city. Retribution comes in the form of the Oxygen Board who cut off the air supply to the gang's hideout for none-payment of bills. They asphyxiate on top of the loot.; Scarlotti brings the roof of the underwater complex down as he escapes with the tapes, leaving the battling Probe and Hacker to their fate. With the help of the transformed Bob Peel (who dies as a result), Probe overcomes Hacker and makes off after Scarlotti, who drowns in quicksand as he tries to complete his escape through the Everglades above.; Highly advanced aliens have started a new ice-age with ocean levels dropping 100 feet overnight. Using a captured alien robot and anti-grav buggy, Hunter and Vandenberg race to a satellite tracking station that is under attack, and succeed in bringing down the alien saucer. A dying technician tells them they had just located a giant alien satellite when they were attacked. Hunter and Vandenberg then head over to investigate the fallen saucer.; The Hellcats succeed in beating the Sharks, even after Clay's jet-pack explodes. The prize is a new Superliner.; On an alien planet totally covered by water Dare and his crew are stranded on the bottom. When Dare goes out to scout around he is rescued from a fall into a mud-pit by some humanoids, but he is not sure if they are friendly.; A dating-agency match-up goes wrong.; Dredd puts a Pirate Radio station off the air after Walter guests on the show.