Storm Front (2004)

Time travel played a huge part in Enterprise’s narrative—it’s here that we see the infamous Temporal Cold War play out in one of the show’s strongest subplots. But Enterprise could also have a bit of high-stakes fun with its time travel narratives, like season four’s brilliant opening two-parter, building on a cliffhanger where the Enterprise finds itself flung back to a World War II-era New York… that’s been occupied by Nazi Germany.