Aimed at an older audience than most other Japanese tokusatsu ("special effects") shows, GARO follows the adventures of Kouga Saejima and rest of the Makai Knights as they protect humanity from the rising threat of the Horrors.
Sorry, no info about the next episode of Garo is available yet.
The TV show is either in vacation or waiting to start their new season. When information about future episodes becomes available, it will be posted here.