As the Sinclairs prepare for an uncharacteristically low-key Fourth of July on Beechwood, Cadence, unsure of who to trust, starts to do some digging into one of the Liars. What she finds helps her to remember last summer's Fourth of July party, when the island was flooded with guests – some more welcome than others. While the Sinclair sisters competed for their father's approval, Cadence did her best to get over Gat, Mirren found a surprising connection, and Johnny helped Ed prepare a romantic surprise for Carrie. In present day, Cadence makes a shocking revelation about one of the Liars, leading to an explosive confrontation that rivals the fireworks.

Unable to continue keeping secrets from her, Gat finally opens up to Cadence about his perspective on the island – one that doesn't always reflect the fairy-tale nostalgia of her own experience. While they head into town in search of answers, Gat recounts his memories of a time-honored Sinclair tradition – Tipper's Lemon Hunt -- and the unplanned visit from his mother that made him question everything.