Peter David has woven a nice new crew of characters within the confines of the awesomely created world of Gene Roddenberry. Keeping true to Roddenberry's visions of the future Peter David has written a series of novels that is compelling and gives us a whole new set of Starfleet's finest to read about.
The U.S.S. Excaliber is an Ambassador Class starship that is captained by M'k'n'zy (Mackenzie) Calhoun, a Xenexian man of vision who once lead the oppressed people of his planet in a rebellion against the Danteri tyrants that ran their planet. He now captains a ship of ragtag crew members in a mission to attempt to maintain order in an area once controlled by a militaristic empire that has now collapsed. One ship to patrol an entire sector and keep the peace, Captain Calhoun and his crew have to find a way to keep the powder keg from exploding and taking them with it.
For the whole of Federation history, this large area of space has been controlled by the Thallionians, a cruel, militaristic race of which little known except that they rule the other races in their sector with a vicious iron hand. Now the Thollonian Empire has collapsed and the systems it once ruled are in chaos. Old hatreds are surfacing. Petty tryants control deadly weapons. World after world is decending into disorder and self-destruction. The Federation must send a starship to help where it can and report back what it finds. That ship is the U.S.S. Excalibur, a newly refit Ambassador class starship commanded by Captain Mackenzie Calhoun and manned by Starfleet's best and brightest, including some old friends from Star Trek: The Nex Generation and some of the most dynamic new characters to ever crew a Federation starship.
A new ship, A new crew, A new mission!!
That ship is the USS Excalibur a newly refit Ambassador class starship.