For Fliss, the prospect of a team building work trip fills her with dread. Mostly because she cannot stand her pushy colleague James, who often attempts to derail her brilliant plans. But when the two arrive in the Scottish Highlands, they find themselves facing a unique challenge: their boss has abandoned them in the middle of nowhere with only one tent, two sleeping bags and a few protein bars.
Cut off from the outside world, the pair are forced to put aside their differences to weather the unpredictable elements of the Highlands and get home. As they set out on a journey across miles of rugged wilderness - pushing each other to survive and testing their physical and emotional limits - they remain fully aware of their boss's manipulative plan to orchestrate a hook up between them.
But even with only each other for company, Fliss and James stand firm in their resolve: they won't give in to any romantic notions. Or will they?
Hattie has spent half her life secretly crushing on Freddie – her best friend Sam's irresistibly gorgeous older brother. But Freddie? He's barely spared a glance for Hattie, the girl Sam befriended one fateful New Years' Eve when they discovered they were birthday twins.
Fast-forward to now: Hattie finds herself single for the first time in years – just before the holidays. Enter Sam, who, in classic best-friend fashion, whisks her away to a remote cabin in the Forest of Dean to cheer her up. Snowy woodland views? Check. A crackling fire and a steamy hot tub? Check. Zero cell service, ravenous wild boars, and an incoming snowstorm of apocalyptic proportions? Also check.
And to make matters even more intense, Freddie joins them, unexpectedly. Still infuriatingly gorgeous, and still ridiculously off-limits. Except this time, he's actually noticing Hattie. But then again, maybe he's been noticing her all along.
Fifteen years of longing. One night to change everything. This New Year's Eve, they're playing with fire.