Set in the 22nd Century, A well-respected space officer (Capt. Stephens) resigns his post over a controversial UFO sighting. He applies for a civilian command with the vast Crest Interplanetary Trading Company and is given a post. However his first mission is not what he expected. The Company have lost two spacecraft in mysterious circumstances and he is dispatched to find them. He is trapped by the rogue character Harry Morgan and captured by his amazing hybrid ship, the Black Swan. After a melee Capt. Stephens is cast adrift in space where he inadvertently comes across the alien ship he had previously seen. The ship is damaged and its occupant dying but Harry saves the day and then the adventure really begins as he and his new companion set off to retrieve the missing company vessels...