sentences:  The episode received mixed to positive reviews from critics.The show centers on FBI special agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson) who work on cases linked to the paranormal, called X-Files.In the episode, Mulder and Scully discover a voodoo symbol drawn on a tree after a soldier, Private Jack McAlpin, crashes his car into it following two separate hallucinatory incidents.