A spaceship crashes, and two war heroes must decide how many, and which victims, can be saved.

A doctor contracts a potentially fatal illness, and only the courage of a colleague can save him.

Dr Conway needs an alien's cooperation in order to reassemble a living jigsaw - but first he must find a way to communicate with it.

In the galactic hospital, floating through space, no case - however weird, alien or baffling - is too small or too large for Sector General.