ST:TOS; Journey to Babel, S2/Ep 39
The Enterprise is seen fulfilling her role as a flagship as the crew hosts several hundred delegates to a conference. Tempers flare, deals are made and intrigue re the future votes to include the Coridan system into the Federation. Spock's parents are present, but not all is well. An ambassador is murdered shortly after arguing with Sarek, Spock's father. And he is not the only victim on this starship voyage....
Ah, ST at its finest. This show has everything: an interesting alien, a mystery, family relational dynamics, good exposure to the Big Three, fascinating tidbits about Spock's life.
Solid acting, fast paced plot, good dialogue. I could watch this one many, many times and not get bored.
What say you? (please use the Universal Translator, if needed).