Jolyne gets acquainted with Green Dolphin Street Prison and her two-faced cellmate, Gwess, who has obtained Jolyne's locket and a pint-sized new Stand.

Jolyne acclimates to prison, but a mysterious boy delivers an ominous message before Jolyne receives a visit from her father and an enemy Stand user.

DIO's follower Johngalli A. aims for revenge. The boy risks his safety to help Jotaro and Jolyne, but she refuses to leave the kid behind.

Jolyne returns to prison to retrieve Jotaro's discs. Ermes Costello discovers her new ability and a guard with discs in his head before she's attacked.

After people go missing from the prison's farm, Jolyne and Ermes volunteer to join the search party as a way to look for Pale Snake and the discs.

Jolyne and Ermes unravel the mystery of Stand F.F. and its user, who admits to helping Pale Snake in his efforts to steal their Stands.

Pale Snake's user, Father Pucchi, makes his entrance. A baseball game in the yard against Miraschon heats up when F.F. and Stone Ocean get involved.

Assisted by Emporio and his friend Weather Forecast, Jolyne rushes to the courtyard to pass Jotaro's Stand Disc to the Speedwagon Foundation.

Father Pucchi learns some damning information. Jolyne and Weather's bodies strain under Jumpin' Jack Spark's Stand ability as the fight continues.

Jolyne reaches the courtyard. Pucchi recalls his talks with DIO and his reason for hunting Jotaro when Weather unleashes a squall of poison dart frogs.