Starfleet Captain Eric Maelström and his first mate Olga Krasnova finally received a new addition to the team - three young graduates of the Star School arrived on the starship Cardiff. Their first voyage is just beginning when the Cardiff discovers the Ark, drifting in space - one of two legendary starships sent four centuries ago with the first colonists on board and disappeared without a trace shortly after launch. The passengers are still alive, although in suspended animation. Perhaps it will be possible to find and save the second ship, heading to the mysterious system 519 Sagittarius?..