“The Great Balance is a lie”: A Taste of Armageddon (Original Series) vs. The Sound of Thunder (Discovery)

Prime Directive? What Prime Directive? Kirk and Saru each take the law into their own hands.

“My place is no longer here”: First Contact (TNG) vs. The Brightest Star (Short Treks)

It’s first contact with new life, from the new life’s point of view.

“What’s a Tuesday?”: Data’s Day (TNG) vs. Calypso (Short Treks)

The Next Generation shows us a day in the life of an android, and Discovery’s second Short Trek shows us a Taco Tuesday in the life of a ship’s computer.

“I live the greatest adventure one could ever desire”: Captive Pursuit (DS9) vs. Runaway (Short Treks)

Chief O’Brien and Ensign Tilly each form unlikely friendships with new life, whether they were seeking it out or not.

“You have angered The Picard”: Who Watches the Watchers (TNG) vs. New Eden (Discovery)

Picard gets a promotion from captain to god, and the Discovery visits a distant colony of humans whose ancestors were abducted by “angels”.

“Are we allowed to squash alien life forms?”: Strange New World (Enterprise) vs. Si Vis Pacem, Para Bellum (Discovery)

Strange new worlds have Trip and Saru behaving … strangely.

“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.