An alien spaceship is discovered orbiting the moon. At the urging of his top advisor, Prince, the president of the USA makes contact in secret with the aliens' leader: A strange man who introduces himself as Stanley H. Tweedle. Unfortunately, the contact does not go well.
When Xev and Kai are separated, Xev hitches a ride with a Texan named Rooster. He and his lovesick lug-head friends vie for Xev's love. Kai's search for Xev leads him to a weird scientist who believes the Earth is in imminent danger.
Xev is forced to adapt to life in prison as she is exploited by the Warden and his wife. Prince decides it's time for Stan to give him the key to the Lexx. Meanwhile, an army of carrot-like mechanical drones arrive and start to devour anybody they come across.
790 lures Stan and Xev to the carrot-probe-infested island of Zig Zag by inviting them on a TV gameshow, "Xevivor," where players compete for a night with Xev. Stan and Xev realize their days are numbered if they stay on the island.
Stan decides to pay his subjects on The Rock a little visit. Unfortunately, none of the inhabitants seem particularly impressed by his presidential decree, focusing, instead, on his remarkable resemblance to the most hated man in town.
