Having remembered a family tragedy, Cadence presses The Liars for answers. Mirren reveals a crush gone awry, Johnny recalls an unwanted visitor, and Gat recounts their relationship's painful turn. Tension between the aunts continues to rise, and Cadence suspects at least one Liar is hiding something, questioning whether what happened last summer was an accident at all.

Unsettled by a series of painful memories, Cadence tries to enjoy what's left of her summer – even if it means distracting herself with a potentially dangerous stunt. Despite her best efforts, she remembers a stormy day from Summer 16 when rising seas and frustrations threatened every Sinclair, exposing the family's darker side and forcing Gat and Cadence to confront their unspoken feelings.