

A mysterious sphere prompts Gideon and the others to relive traumatic moments from their past.
Capt. Matthew Gideon assembles the crew that will be with him on the experimental starship Excalibur. Their mission: explore the reaches of space to find a cure for the deadly Drakh virus that will overrun Earth in five years.
Gideon mediates between Earth miners and the residents of a planet containing a virus-fighting mineral--and a fire-breathing dragon.

Galen persuades Gideon to seek a mystical crossroads. An investigator probes Matheson's mind.