Leon & his younger sister, Grace, have recently moved to London from New York & are struggling to settle into their new school when rumours of an unidentified virus in Africa begin to fill the news. Within a week the virus hits London. The siblings witness people turning to liquid before their eyes, & they run for their lives. A month after touching Earth`s atmosphere the virus has assimilated the world`s biomass. But the virus isn`t their only enemy, & survival is just the first step.. .