
While the animated series Star Trek: Lower Decks is know for its overt comedy — which has included a fair share of dirty jokes and swear words — this show still takes place in the real-deal Star Trek canon, and as such, is, at its core a serious Star Trek show. Now, with its penultimate episode, “Fissure Quest,” Lower Decks has done something no other Trek series has ever accomplished: casually drop a crossover episode consisting of various legacy characters, albeit all from alternate universes. But this episode isn’t just a one-off joke. In “Fissure Quest,” we learn that a crew of what can only be called Star Trek “variants” are out there trying to stop the multiverse from collapsing in on itself.
Somehow, this episode is the best Trek episode about parallel universe ever, contains lavish fan service, and also, by mocking its own basic conceit, puts other contemporary multiverse shenanigans like the MCU to shame.