Star Trek V: The Final Frontier Family Quotes

Spoiler: Sybok is Spock's half-brother. Brain blown. This scene is important because it shows that although Spock is loyal to Enterprise, he still cares for his brother enough to spare the dude's life—even if that means losing the ship in the process.

Our brief glimpse of McCoy's relationship with his father is devastating. Through Sybok's magic-therapy powers, we learn that McCoy unplugged his dad from life support when he was deathly ill, in an attempt to ease his pain. Heavy. Even now, McCoy is wracked with guilt and unsure if he did the right thing.

Here's some context: Spock's dad, Sarek, is a Vulcan, while his mother is human. In this light, it's clear that Sarek is throwing shade at his newborn son and distancing himself from him.