Create your own Star Trek style adventure

Space: The final frontier. These are the voyages of the starship 'Epsilon Ursa.' A quick improv style Star Trek scenario for the holiday season. You can read through the prompt to get a feel for how the placeholders will be used, or just dive in and see what happens. You don't need to put periods after the entries as they are already in the prompt. Make it as serious or silly as you like!