"Brazil, December 1921" was an unproduced episode of The Young Indiana Jones Chronicles, which would have been part of the third season of the series, a follow-up to the also unmade "Honduras, December 1920". The subject of the episode would have been anthropology.
In this episode, Indiana Jones would have another encounter with his arch-nemesis René Emile Belloq after having confronted him in Honduras the year prior. The two boys would have got involved in Colonel Charles Fawcett's quest to find the legendary 'Lost City of Z'. The trek would have started in Bahia, and they would have come across a group of American confederates living on a plantation there, witnessed rituals of the Candbomble religion, and encounter fierce indigenous natives in the interior. Belloq and Indy get captured but escape, and go their separate ways.