Robotech Season 3 Episode 19 English Dubbed Episode Title:Frostbite.Episode Description:Scott's team stumbles upon an old subterranean city in the Rocky Mountains (revealed to be Denver, Colorado) while trying to avoid Invid patrols. With the power still on, the team branches off to find fresh supplies and experience civilization once more. Scott accompanies Marlene, who reminds him of his namesake fiancee, but their moment is disrupted when Corg finds the team and attacks. The group evacuates the city, which Lunk has rigged to self-destruct by overloading its geothermal plant. Corg survives the blast but Scott is suspicious of how Marlene felt he was in the neighborhood.