This was the first episode of the series that I say was genuinely good as opposed to just tolerable.
An unidentified ship wide beeping noise begins to keep the crew and passengers awake, only increasing the tensions on board. This intensifies when it's suggested that the noise is an alarm that occurs when the ship is leaking Oxygen. The ships activities, even down to speaking, are curtailed to try and prolong the remaining supply.
It's annoying to start with a scientific issue, it is a comedy series after all - but the resolution doesn't make sense. The alarm is - Spoiler - due to the extra oxygen for a child born on board and the need to recalibrate the levels. Shouldn't the alarm have then gone off a few weeks ago, when the three people died? Again, hate to be the one overthinking it, but given that's the resolution they went with I felt I had to bring it up. That said, this was the funniest episode of the run so far, it's the reliable sources again that are the catalyst. Huge Laurie, Rebecca Front, Suzy Nakamura but even the usual annoying aspects (Josh Gad and Zach Woods) are better in this one. Perhaps everyone is finally getting a handle on who the characters are, as the shows running on.
Back next week for the penultimate episode of the run.