The eponymous Fleabag returns, joining an uncomfortable family dinner to celebrate Godmother and Dad’s engagement. Alongside familiar faces - uptight sister Claire and her alcoholic husband Martin - Fleabag find herself intrigued by Godmother’s new priest. The evening comes to a tempestuous end, however, when an unexpected attack brings old tensions bubbling to the surface.

A counselling session elicits an uncomfortable truth from Fleabag, and she finds herself somewhere unexpected. Elsewhere, a chat with Claire brings some unwelcome news, Martin and Fleabag face off, and Jake wonders where Claire is.

Fleabag helps with an event at Claire's work which inevitably ends in disaster, but an introduction to Claire's colleague proves intriguing, and a chance meeting with a stranger opens Fleabag's eyes.

The Priest takes Fleabag for some quiet reflection leading to an unexpected revelation. After a day spent looking back on painful memories, Fleabag searches for solace, only to find more trouble.

Claire has a crisis and turns to Fleabag for help, whilst a familiar face makes a reappearance at the cafe. Hilary makes a friend, Martin demands answers, and Godmother and Dad's wedding hangs in the balance.

The day of the wedding arrives, Jake wants to know where Claire is, and the Priest upstages the bride. As secrets are revealed and decisions are made, will Fleabag find the ending she's looking for?