RADIATION POISONING

During its return from Mars 2.0,
the scoutship E.S.2909 was exposed to alarming amounts of hazardous gamma radiation,
killing almost every crewmember in the vessel.
Upon re-entry into Earth's atmosphere the sole survivor ,Flight Engineer Jan D.N., called in a request to manually override the ship's course 
but was denied clearance to do so.
It's been six months now since Jan's return and the infection is still growing, festering,... winning.