A con man preying on older women has a mysterious link to Marcus' genes. Meanwhile, Percy is going through some mental difficulties.

Marcus believes he can convert the ship's hyper drive to use negative energy instead of anti-matter, but will need Durenium to produce it. Marcus attempts to find an old contract who may be be able to put him in contact with a seller of this rare and illegal element. Executive Chief Inspector Tibbit boards The Tulip to make sure that engines are in proper working order before granting Caravaggio's application for a change in power source.