David Marcus

And as always, Mary, spoilers ahead.

On the Genesis planet, Saavik discovers that David Marcus used an unstable substance called protomatter in the Genesis experiment, causing the planet to deteriorate rapidly.

The instability is also accelerating Spock's aging.

Meanwhile, Kirk and the Enterprise arrive at Genesis, where they're ambushed by Commander Kruge's Klingon Bird of Prey.

Although the Enterprise scores a direct hit, the Klingons return fire, disabling the ship.

Kirk and his crew are left defenseless.

Kruge reveals that he's holding Saavik, David, and Spock hostage on the planet.

When Kirk refuses to surrender, Kruge orders one of the prisoners executed.

Following the battle with Khan, the badly damaged Enterprise returns to Earth.

Spock is dead, David Marcus and Lieutenant Saavik are studying the newly created Genesis planet, and Kirk is still grieving the loss of his closest friend.

Meanwhile, Klingon commander Kruge obtains secret information about Project Genesis.

Convinced that Genesis could be used as a devastating weapon, he sets course for the planet to seize its secrets for the Klingon Empire.

...

in later movies.

But anyway, uh, there's a lot going on with Genesis and what Saavik and David Marcus are experiencing on the planet.

Yeah.

Later, Kirk finally begins to confront something he's spent his entire life avoiding: death and loss.

David tells Kirk that he's proud to be his son, and the two embrace.

As Enterprise departs, Kirk looks at the Genesis planet, a world literally created from death, and begins to see the possibility of renewal.

When Bones asks how he feels, Kirk gives the movie's final emotional answer: "Young.

So I had a question for you.

Mm-hmm.

How do you feel about Kirk's solution to the Kobayashi Maru, which he confesses to? David accuses him of straight-up cheating.

I've always thought that it was cheating.

Later, Kirk finally begins to confront something he's spent his entire life avoiding, death and loss.

David tells Kirk that he's proud to be his son, and the two embrace.

As Enterprise departs, Kirk looks at the Genesis planet, a world literally created from death, and begins to see the possibility of renewal.

When Bones asks how he feels, Kirk gives the movie's final emotional answer.

And that brings us back...

So I had a question for you.

How do you feel about Kirk's solution to the Kobayashi Maru, which he confesses to? David accuses him of straight up cheating.

I've always thought that it was cheating.

And Mr. Chekhov is the first officer on the Reliant.

And he and his captain, Terrell, go down to do an exploratory mission for Dr. Carroll and David Marks' Genesis mission, which will become very, very important in the plot of this movie.

And then...

Khan is introduced, or I should say reintroduced, when Chekhov discovers, oh my goodness, this is not City Alpha 5, this is City Alpha 6, or the other way around.

So anyway, I want to talk a little bit about the communication between Kirk and Dr. Marcus.

That leads to the Enterprise going on a rescue mission that requires Kirk taking over.

Khan leads Carol Marcus to believe, and David Marcus for that matter, to believe that it was Kirk who ordered the Genesis device seized from them and turned over to Starfleet.

And that actually triggers David to go into this rant about how Starfleet is the military and the military is going to take this thing over and bastardize it and turn it into a terrible weapon.

Chekov and Terrell appear to have escaped Khan's control, but it's a trap.

The survivors are hiding deep inside the regular planetoid, along with the Genesis device, and Kirk discovers that one of them, David Marcus, is his son.

Then Khan orders Tyrell and Chekov to kill Kirk.

Tyrell resists and commits suicide rather than obey.

As it unfolds.

So anyway, I want to talk a little bit about the communication between Kirk and Dr. Marcus that leads to the Enterprise going on a rescue mission that requires Kirk taking over.

Khan leads Carol Marcus to believe, and David Marcus for that matter, to believe that it was Kirk who ordered the Genesis device seized from them and turned over to Starfleet.

And that actually triggers David to go into this rant about how Starfleet is the military and the military is going to take this thing over and bastardize it and turn it into a terrible weapon, something that Bones also warns of, that Genesis can be... turned into this terrible, terrible device that could annihilate entire worlds.