1-04: Code of Honor

An alien leader choose Yar as his wife.

In investigating the communications loss of the SS Tsiolkovsky, the Enterprise crew contracts an illness that leads to bizarre behavior.

When engine tests fling the Enterprise to the far reaches of the universe, the crew must rely on a mystifying alien to return them home.

On its maiden voyage to explore a new trade station, the crew of the Enterprise-D are delayed by an omnipotent being who views humans as inferior and non-worthy of space exploration.

During pursuit of a Ferengi ship, both ships are rendered powerless by an unknown force.