Hades (played by Mr. Cat) steals innocent souls from Olympus, and Zeus (played by Kaeloo) must get them back.
"Let's Play Mythology" contains the following tropes:
- Dance Party Ending: The episode ends this way, to the disappointment of Mr. Cat and Stumpy, who were expecting a fight scene ending.
- Didn't Think This Through: Zeus demands that Hades release everyone's souls. To spite Zeus, Hades releases literally all the souls, including the ones who deserved to be there... including their father, Chronus, who wanted to eat his kids. Zeus sees Chronus roaming free and remarks that Hades has been really irresponsible. From inside Chronus' stomach, Hades remarks that Zeus is right.
- Exact Words: See Didn't Think This Through above.
- Everybody Hates Hades: The episode has the show's most villainous character, Mr. Cat, play the part of Hades.
