Dr. STONE Episode 13: Masked Warrior
Episode 13 of 24 of Dr. STONE, aired September 27, 2019, 24 minutes. Available with English subtitles and dub where released.
Episode summary
All that’s needed to make antibiotics is alcohol. The best way to get some is to win the Grand Bout, which the Senku and his kingdom will also need to do in order to keep Magma away from Ruri and give her the drug.