Hercules and Admetus 1986 on netflix

Admetus, king of Feres, makes an agreement with the Fates to postpone the date of his death, in exchange for someone else taking his place, without knowing that the chosen one will be his beloved wife Alcestis. Desperate, Admetus asks Hercules for help in rescuing Alcestis from death… An animated short film based on the Greek myth of Admetus and Alcestis.