In the not-too-distant future, an alien threat looms over humanity.
 
The British Space Empire, glorious and proud, must send a new hero to stand against the might of the Ghasts. That hero is Isambard Smith: mustachioed and dashing, he is the only man for the job, which is fortunate, because he's also the only man available.
 
Smith must overcome every obstacle the universe (and his mismatched crew) can throw at him as he traverses the galaxy to rescue humanity's only hope, give the Ghasts a right, good thrashing on the way, and make it home to blighty in time for tea.