The Enterprise traces a virus-like outbreak that seems to be traveling in a direct line across a planetary system. The next planet is home to Kirk's brother Sam, his sister-in-law and their young son. The Enterprise arrives too late however for Sam. They find flying jellyfish-like creatures that attach themselves to humans. They take over the victims nervous system forcing them to bend to their will. Spock finds a weapon to use against the creatures but it leaves him hopelessly blind.
Did You Know?
After the Enterprise crew established a zero-tolerance viral quarantine protocol in Star Trek: Miri
, their lack of concern about bringing the infected Denevan colonists onto the ship is a bit odd. See more
They were going to brain us with these clubs.
Special Enhanced version Digitally Remastered with new exterior shots and remade opening theme song See more
Featured in Bring Back... Star Trek