Oh, what a difference a year makes. The crew of the classic 1972 series Sealab 2020 has been replaced with a gang of misfits unfit for public service. Their mission: to investigate underwater colonization. They are doing a very bad job. It is the year 2021. In this mind-bogglingly distant future, Sealab rises imperiously from the ocean's floor, her crew charged with exploring the possibility of underwater colonization. That is, when they're not exploring communist theory.