Sixteen-year-old Finn Miller's life comes to an abrupt halt following a tragic car accident that plunges her along with ten others down a mountainside. Now existing in a liminal space, Finn is a silent observer to the poignant struggles of her loved ones as they attempt to piece their lives back together. Haunted by the harsh realities of survival and the weight of unforgiving choices, Finn's family endures a harrowing journey through guilt and grief. Her father, Jack, is driven by a vengeful heart; her best friend, Mo, seeks truth amidst the chaos; her sister, Chloe, longs for Finn's presence; and her mother, Ann, grapples with the ghosts of her life-saving decisions. As each of them faces the challenge of moving forward, 'In an Instant' narrates a powerful saga of love's resilience, the multifaceted nature of family, and the profound courage it takes to persist when all seems lost.