Kritschgau and Skinner put Mulder under additional tests to verify his abnormal brain activity . They again inject Mulder with phenytoin , but this time they are caught by Fowley and Mulder go into a seizure . Meanwhile Dr. Barnes , in a bizarre type of experiment , kill his driver , but the driver soon reanimate and kill him instead . Scully fly back to the U.S. and visits Mulder at the hospital . On the African coast , Ngebe arrive with the police , finding Dr. Barnes dead and the spaceship gone .