Stardate: 43625.2 A time rift opens up in front of the Enterprise. A battered and abused starship comes through from 22 years in the past. It is the Enterprise-C, the predecessor to the modern ship. A terrible battle which almost destroyed it has opened the rift. As the Enterprise-C comes through the rift, however, the end of its presence in the past drastically alters the present, and Lt. Worf is replaced by the formerly deceased Tasha Yar... The Enterprise-C's failure to be where it needed to be has led to a very different present, victim of a long and drawn-out war between the Federation and the Klingon Empire, leading to the passing of billions. Only Guinan senses the change, and, warning Picard, he must make a choice - to send back the ship through the rift, to almost certain doom, trusting Guinan's assurances that his present was never meant to be. Or to save the 125 surviving crewmembers.
"Space, the final frontier. These are the voyages of the starship Enterprise. Its continuing mission: To explore strange new worlds, to seek out new life and new civilisations, to boldly go where no one has gone before".
In this highly successful spin-off to the original Star Trek, Captain Jean-Luc Picard and the crew of the Galaxy-Class starship, the U.S.S. Enterprise NCC-1701-D, set out to explore the final frontier. Along the way, they make first contact with myriad different species and solve reconflicts among those societies with whom they were already familiar, most notably the Klingon Empire.