Continuing from Ultimatum #1, the floods have also reached the Fantastic Four. Sue is lying in an "invisible coma" causing her powers to overload and not being able to shut down. Ben pays a visit to Sue's old friends to help her and together they track down the Mole Man who agrees to help save his beloved former student. Meanwhile, Mary Storm keeps an eye out for her sick daughter while Reed Richards is off somewhere else. Johnny is still missing, and the death of Franklin Storm is confirmed.