Unsettled by a series of painful memories, Cadence decides to give up her quest for answers and try to enjoy what's left of her summer – even if it means distracting herself with a potentially dangerous stunt. Despite her best efforts, she's triggered to remember a stormy day from Summer 16 when rising seas and rising frustrations threatened everyone in the family, exposing the darker side of the Sinclairs and forcing Gat and Cadence to confront their unspoken feelings.

More uncertain than ever, Cadence reluctantly agrees to accompany Harris on an excursion – and the time with her grandfather reminds her of their final confrontation in Summer 16. Stakes were high as the Sinclairs met for a civilized family dinner – but the gloves came off before the main course was served. Politeness was entirely forsaken as the Liars confronted their mothers about family secrets, lines were drawn, and ultimately, actual blood was spilled. In the aftermath, the Liars mourned what had become of their once-beloved childhood playground, and the adults they once admired – and they decided to unite in a desperate attempt to save the family from being torn apart forever.