Release Message:  A historian (Matt Frewer) arrives from 300 years in the future to study an unspecified event.

Description:  Reaching Panthera IV after an asteroid wreaks havoc of catastrophic proportions, the Enterprise crew deals with trying to save the planet as well as deal with someone who claims to be a historian from the future. Wikipedia: A historian arrives from 300 years in the future to study an unspecified event.