Challenger

Far from the reaches of the Federation, the Starship Enterprise has been guiding the development of a once obscure planet upon whose fate the future of the galaxy may now depend. The Enterprise has been the sole representative of the Federation, fighting a constant battle to protect the colonists from enemy aliens and standing alone against all those who have their own designs on the colony world. Now it is time for Captain Kirk and the Enterprise to turn over the guardianship of the colony to another ship and crew. The new ship arrives - and is destroyed. With the Enterprise off fighting a new and powerful enemy, Commander Nick Keller, first officer and ranking survivor of the decimated crew, must find a way to complete his original mission and come to the aid of the Enterprise in what might be its most desperate hour.