A tour de force of the best that a television series can offer: a well written script, solid ensemble acting (including the episode's guest actors), excellent direction, and an Emmy-nominated score to boot. Specific to Star Trek, there were solid special effects including a lengthy space battle (with the Klingons), the introduction of the Ambassador-class starship (Enterprise-C), and a full-fledged time displacement. Guinan's character was also fleshed out, while at the same time endowed with even more mystery, being the only one to sense the effects of the time displacement. The episode also set up a significant long-term plot line in the series, one that wouldn't be resolved until halfway through the fifth season. There were many memorable lines throughout, most striking being the transition from "Captain's Log, Stardate" to "Military Log, Combat Date". The only thing I would have changed would have been to have Worf leading the Klingon squadron in the alternate timeline... It would have been fun to hear him say: "Federation ship: Surrender, and prepare to be boarded." Regardless, one of the best in the series, and in my opinion, one of the best single episodes of any television series.
Review of Yesterday's Enterprise
