I Griffin — 18x15

: Stewie, tired of his family's constant dynamic, uses a machine to "reverse-age" himself back into a normal baby—losing his sophisticated intellect and British accent in the process.

: Meanwhile, Peter and his friends get into "Yacht Rock" music after Dr. Hartman introduces it to Peter as a way to manage stress. This leads them to join a Yacht Rock Cruise , which eventually ends in a disaster where their ship capsizes. I Griffin 18x15

This episode, originally titled "," first aired on April 26, 2020 . : Stewie, tired of his family's constant dynamic,

: The episode concludes with a "deus ex machina" moment where the characters are simply teleported back home safely after being trapped in the sinking ship. International Context This leads them to join a Yacht Rock

The phrasing "I Griffin" is specifically the Italian title for the show. In Italy, the 18th season was broadcast between November 2020 and September 2021.