In the damp, blue-grey dawn of a Maine harbor, lanky barista Noah Bennett struggles to pack up the cozy, oceanfront Higgins Cove Diner. Following the sudden death of his beloved mentor, Harlan, the diner must close permanently by week's end, leaving the directionless Noah adrift in his own lingering grief and fear of the future. Real estate agent Gable Finch arrives with the formal handover paperwork, demanding the keys three days early and threatening to cut short the diner's final week. Noah is forced to stand his ground, insisting on opening the doors for one final, sacred week of 5 AM services to honor the harbor's earliest risers. Noah struggles to match Harlan's effortless, comforting atmosphere while executing the precise, slow-drip coffee brewing rituals. Stoic commuter driver Arthur Crane hides deep loneliness behind a silent nod, while watercolorist Clara Vance silently weeps over her failed gallery dreams. When elderly regular Maeve Higgins reacts with fierce anger over the upcoming closure, Noah feels like an utter failure—until he discovers Harlan's old, stain-weathered leather ledger under the register, revealing personal formulas for comforting each regular. Using Harlan's ledger, Noah brews highly customized cups that speak directly to the unspoken burdens of his regulars, offering them a space to heal. On the final morning, instead of a somber exit, the entire community gathers in the mist, helping a tearful Noah load the final boxes. He locks the door, leaving a fresh thermos behind, and walks toward the highway with a lightened heart.