The episode opens with a transmission from Chromia who was last seen, albeit barely, as part of the Ark's crew in "Eruption." Whether it's now being retconned that she remained on Cybertron or she returned home in the time skip between seasons is as of yet unclear.
Optimus tries to restart the alternate Ark using the override key on the right arm of the command chair that Teletraan-X used to reboot the ship in the last episode.
While attempting to fix the spacebridge, Wheeljack remarks that he's "no Quintesson." This is an allusion to the fact that the Quintessons were the ones who introduced spacebridges to Cybertron in the Aligned continuity family, implying the same may be true in Cyberverse continuity.
When the Ark enters unspace, Wheeljack swears by Prima.
Real-world references
Trivia
Noticeably, Wheeljack pronounces "Quintesson" with an accent on the second syllable, whereas in most media the third syllable is the one given emphasis.
