Answer
Hades, the god of the underworld, is visited by Dionysus in the play "The Frogs" by Aristophanes. Dionysus, the god of wine and revelry, embarks on a journey to the underworld to bring back his beloved playwright, Euripides. Along the way, he encounters various mythological figures and engages in comical situations, providing a satirical take on Greek mythology and contemporary Athenian society.