This book contains twenty Science Fiction stories totaling approximately 130,000 words. The first three stories follow Harry Dondero, the first officer of the tramp star freighter, Orion. The topics for these twenty stories cover aliens, time travel, rogue technology and more.

Five of the stories were novelettes originally published in Analog Magazine.

Three of the stories were written by Hayford Peirce and David Grace (then writing under the "David Alexander" name).