In a Mirror, Darkly (2) - S4-E19
Continuity mistake: The Avenger attacks the Defiant's saucer section, but later, no damage is visible in this area.
Star Trek: Enterprise (2001)
1 mistake in In a Mirror, Darkly (2)
Captain Archer: Enterprise was designed to be a ship of exploration.
Degra: If we're successful, it will be again.
Trivia: Season 3 of Enterprise is the only season of any Star Trek series to date in which no Klingons appear.
Question: Is the captain's dog still alive?
Answer: Yes. Porthos survives this episode, although many a viewers' sanity and the show's ratings were not so lucky.