TOS- Mudd's Women

While chasing an unregistered Earth ship through an asteroid field, the Enterprise burns out all but one of it's "lithium" crystals. Fans are further confused by Uhura being in gold. The ship's captain and his "cargo" are beamed aboard at the last minute ( of course) . Kirk and Co must discover the true ind entity and true intentions of the smarmy captain while reaching the mining planet of Rigel XII before the ship's last crystal goes. This episode is a modern feminist's nightmare, and I shudder to think of a future where woman would go to such lengths for a husband.