Gary describes the plot of this episode to Wyatt, though he mistakenly believes that the two Lazaruses are from the past and future rather than different universes.
When Louis introduces Sheila Sazs, Mike and another associate call her the "female Louis." They wonder aloud if Louis and female Louis touch, will the universe end. This is a direct reference to the two Lazaruses in Star Trek S1E27 "The Alternative Factor" - if the two Lazaruses are ever to meet in the same universe at the same time, everything in both universes will be annihilated.