“Do we need a mutiny today to prove who we are?”: Equinox, Parts 1 & 2 (Voyager) vs. The War Without, The War Within & Will You Take My Hand? (Discovery)

The crew of Voyager meet another Starfleet crew who aren’t nearly as cool about being stranded in the Delta Quadrant as they are; the crew of the Discovery learn that Starfleet Command has made a genocidal Terran their new captain.

“We will not accept a no-win scenario”: In a Mirror, Darkly, Part 2 (ENT) vs. What’s Past is Prologue (DSC)

We wrap up our trip to the Mirror Universe with two episodes that are each classic Trek, but in very different ways.

“This feels like a reckoning”: Shattered Mirror (DS9) vs. Vaulting Ambition (DSC)

The Siskos and Burnham spend more creepy quality time with the Mirror versions of their lost loved ones, which turns into a sitcom for the Siskos, and a horror movie for Burnham.

“Every moment is a test”: Through the Looking Glass (DS9) vs. The Wolf Inside (DSC)

Sisko and Burnham impersonate their Mirror Universe selves, which leads Burnham to question her faith in herself and in humanity … and leads Sisko to look cool dual-wielding phasers.

“Their strength is painted rust”: In a Mirror, Darkly, Part 1 (ENT) vs. Despite Yourself (DSC)

The crew of the ISS Enterprise are mostly evil, while the crew of the ISS Discovery are just pretending to be.

“There’s got to be something better than this”: Mirror, Mirror (TOS) vs. Crossover (DS9)

In Trek vs. Trek’s first trip to the Mirror Universe, we see how differently the Original Series and Deep Space Nine approach the idea of ‘the darkest timeline’.