On Christmas Eve, Logan changes the oil in the car of Grace’s father, Tim. A package for Grace arrives from an anonymous Boston PO box. Inside, they find a note that reads, “I missed you” (15), and a creepy antique porcelain doll. Grace and Logan immediately recognize the doll, Alexander, as part of an ongoing prank among Logan and his friends. Logan explains to a fascinated Tim that Alexander is supposedly haunted by the spirit of a young boy named Willie who died on the California Trail. He also explains that his friend Dean Heyward-Di Laurentis originally bought the doll for his other friends John “Tucker” Tucker and Sabrina James’s baby daughter because it was said to be haunted, after which it became an ongoing prank as their friends repeatedly shipped it to one another. Tim takes the doll to the attic, and the incident leaves Logan and Grace reflecting on how much they miss each other due to the demands of his hockey career.

A few days after Christmas, Logan leaves for a five-day stretch of road games on the West Coast. Grace, a senior at Briar University and the manager of the campus radio station, feels the strain of their conflicting schedules. During brunch with her former roommate, Daisy, Grace confesses that while her relationship with Logan is strong, the constant distance has become difficult for them. She misses him and worries about their lack of time together. Daisy suggests that a more permanent commitment, like marriage, might provide the stability they need to get through this difficult period. Later, Grace and Logan exchange text messages before his game, but that evening, exhausted from work and school, Grace falls asleep before Logan can call her afterward.

In his hotel room after a game, Logan is disappointed to find Grace already asleep when he texts her. Worried about the growing distance between them, he meets his teammate and friend Garrett Graham for a drink. Logan confesses his fear that Grace might break up with him. Garrett advises him to make Grace a priority by creating shared experiences to strengthen their connection, suggesting an upcoming New Year’s Eve break as an opportunity. When Logan returns to his room, he finds a naked female fan handcuffed to his bed. Shocked and uninterested, he leaves, reports the intruder to the front desk, and spends the night on the couch in Garrett’s room.

A hockey gossip website publishes an article speculating that Logan and Garrett are secretly a couple, using grainy photos of them in the hotel as “evidence.” Grace and her friends—Sabrina, Allie Hayes, and Hannah Wells—find the story hilarious and joke about it in their group chat. Their conversation also reassures Grace that female fans breaking into hockey players’ hotel rooms is an unfortunate but familiar occurrence, easing her lingering unease about the incident involving Logan. When Logan returns home after the game, he and Grace laugh about the rumor. The lighthearted moment turns serious as Logan reaffirms his long-held promise to marry her one day. Acknowledging their lack of time, Logan surprises Grace by revealing that he has booked a two-day New Year’s ski trip for them in Vermont, which she’s thrilled about.

While driving to Vermont for their New Year’s trip, Logan and Grace joke with their friends via text about the fake romance rumors. As they drive deeper into the countryside, the weather deteriorates into a heavy snowstorm. Grace grows anxious, and Logan realizes that he mistakenly checked the weather for Boston instead of their destination, which is expecting a blizzard. Believing that they can reach the bed-and-breakfast before the worst of the storm, they decide to push forward through the treacherous conditions. The drive becomes increasingly difficult until a sudden gust of snow causes Logan to brake instinctively, sending their SUV skidding off the road toward the slope at the shoulder.

Uninjured but shaken, Grace and Logan find their SUV stuck at the bottom of a snowy slope. They attempt to drive back onto the road, with Logan pushing from behind, but the vehicle can’t get traction in the deep snow. The effort fails when Logan slips on the ice, narrowly avoiding being hit as the car slides back down. Fearing for his safety, Grace insists that they stop trying and call for help. Logan uses his phone’s weak signal to contact roadside assistance. After being put on hold repeatedly, the dispatcher informs him that due to the blizzard and the holiday, the earliest a tow truck can arrive is the next morning.

With roadside assistance not expected to arrive until about three o’clock in the morning, Logan and Grace decide to wait it out in the car. Logan retrieves a blanket from his emergency kit and a bottle of champagne he packed for their trip. To conserve fuel, they periodically turn the car on to run the heat. As the cold sets in, they begin kissing to stay warm, and their intimacy deepens while they wait together in the back seat. They have sex. Afterward, they lie together, temporarily content despite their predicament.

As they wait for the tow truck, Logan and Grace countdown to midnight and celebrate the New Year with their champagne. As the hours pass, they share childhood memories, and a tipsy Grace repeatedly jokes that they will die in the blizzard. She proposes a “pact” that whichever of them survives should eat the other to avoid starvation. Logan is horrified and refuses. As three o’clock passes, Grace worries that the tow truck won’t find their snow-covered car. Logan goes outside to clear the snow and turn on the emergency blinkers. At 4:22 am, the car runs out of gas, and the heat dies completely. They cuddle for warmth, sharing a tender moment about how much they miss each other. Finally, at 5:13 am, they’re woken by the horn of the arriving tow truck.

After the tow truck pulls their SUV back onto the road and they refuel, Logan and Grace finally continue toward the bed-and-breakfast. Logan reflects that the harrowing night was the kind of “adventure” that Garrett had recommended to bring them closer. Logan proposes a new, more serious pact: They must promise to always make time for each other and prioritize their relationship above their demanding schedules. Grace tearfully agrees. When they arrive at the bed-and-breakfast, they’re warmly greeted by the hosts, Amanda and her husband, Pastor Steve. Learning that Steve is a pastor prompts Logan to ask if he performs weddings.