When does The Immortal return?

The Immortal aired on ABC from September 24, 1970 to January 14, 1971. The series was based on a pilot film of the same name, which aired on September 30, 1969. The pilot is based on the 1964 science fiction novel The Immortals, by James Gunn. The Immortal was canceled at midseason, but episodes were rerun in the summer of 1971.